Asked by: Dr. Ashton Rogahn
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without the faculty of reason; deprived of reason. without or deprived of normal mental clarity or sound judgment. not in accordance with reason; utterly illogical: irrational arguments.
Is irrationality a real word?
noun, plural ir·ra·tion·al·i·ties for 2. the quality or condition of being irrational. an irrational, illogical, or absurd action, thought, etc.
What is the correct meaning of irrational?
(Entry 1 of 2) : not rational: such as. a(1) : lacking usual or normal mental clarity or coherence. (2) : not endowed with reason or understanding. b : not governed by or according to reason irrational fears.
How do you use the word irrational in a sentence?
Irrational sentence example
- It wasn’t the money he objected to so much as the irrational logic. …
- There must be a God who can miraculously endow the irrational mind of man with truth — so runs the new. …
- The soul is partly irrational , partly rational; and therefore there are two kinds of virtue.
What part of speech is the word irrational?
As detailed above, ‘irrational’ can be an adjective or a noun. Adjective usage: an irrational decision. Adjective usage: The number π is irrational.
40 related questions found
What is the adjective for irrational?
/ɪˈræʃənl/ not based on, or not using, clear logical thought synonym unreasonable. an irrational fear. You’re being irrational.
What is an irrational number give examples?
Give an example. An irrational number is a type of real number which cannot be represented as a simple fraction. It cannot be expressed in the form of a ratio. … Example: √2, √3, √5, √11, √21, π(Pi) are all irrational.
What defines a irrational number?
Irrational number, any real number that cannot be expressed as the quotient of two integers. For example, there is no number among integers and fractions that equals the square root of 2. … Each irrational number can be expressed as an infinite decimal expansion with no regularly repeating digit or group of digits.
What is an irrational person?
When someone is being irrational, they don’t listen to reason, logic, or even common sense. They are laser focused to fulfill a need. And until that need is fulfilled, or they snap out of it, the irrational person can be unpredictable and sometimes even dangerous.
What is the base word of irrational?
irrational (adj.)
late 15c., «not endowed with reason» (of beasts, etc.), from Latin irrationalis/inrationalis «without reason, not rational,» from assimilated form of in- «not, opposite of» (see in- (1)) + rationalis «of or belonging to reason, reasonable» (see rational (adj.)).
What is the meaning of rational and irrational?
Rational numbers are numbers that can be expressed as a fraction or part of a whole number. (examples: -7, 2/3, 3.75) Irrational numbers are numbers that cannot be expressed as a fraction or ratio of two integers. There is no finite way to express them. ( examples: √2, π, e)
What does swooning mean?
1a : a partial or total loss of consciousness. b : a state of bewilderment or ecstasy : daze, rapture. 2 : a state of suspended animation : torpor. Other Words from swoon Synonyms & Antonyms Example Sentences Learn More About swoon.
What a stupidity means?
1 : the quality or state of being foolish or slow in understanding. 2 : a foolish thought, action, or remark. More from Merriam-Webster on stupidity.
What is your clue in identifying irrational?
An irrational number is a number that cannot be written as the ratio of two integers. Its decimal form does not stop and does not repeat. Let’s summarize a method we can use to determine whether a number is rational or irrational. stops or repeats, the number is rational.
What describes a number that Cannot be irrational?
A number that cannot be irrational is: A number that cannot be written as the ratio of two integers.
Is 2/9 A irrational number?
Is 2/9 an irrational number? Explanation: It is also a real number, as rational numbers are a subset of the real numbers (as are all the others mentioned).
Is 0 A irrational number?
Why Is 0 a Rational Number? This rational expression proves that 0 is a rational number because any number can be divided by 0 and equal 0. Fraction r/s shows that when 0 is divided by a whole number, it results in infinity. Infinity is not an integer because it cannot be expressed in fraction form.
Is 3.7 Repeating a rational number?
A repeating decimal is not considered to be a rational number it is a rational number. … Also any decimal number that is repeating can be written in the form a/b with b not equal to zero so it is a rational number.
Is 0.1416 a irrational number?
14 16 is not an irrational number. It is a rational number because its decimal expansion is non-terminating and repeating. (3) 0 . 1416 is not an irrational number.
Is 13 a irrational number?
13 is a rational number. A rational number is any number that is negative, positive or zero, and that can be written as a fraction.
Which of the following is irrational number 7?
So 7 divides p and p and p and q are multiple of 7. √7 is an irrational number.
Is the number 10 irrational?
A rational number is any number which can be expressed as a fraction pq where pandq are integers and q is not equal to zero. … In this fraction both numerator and denominator are natural numbers so 10 is a rational number.
Why π is an irrational number?
Pi is an irrational number, which means that it is a real number that cannot be expressed by a simple fraction. That’s because pi is what mathematicians call an «infinite decimal» — after the decimal point, the digits go on forever and ever. … (These rational expressions are only accurate to a couple of decimal places.)
Adjective
He became irrational as the fever got worse.
She had an irrational fear of cats.
Recent Examples on the Web
Some fears are irrational, but others are rooted in reality.
—
Bonnie Low-kramen, Quartz, 14 Mar. 2023
Picking different teams to win the same game in different pools is not irrational.
—Victor Mather, New York Times, 13 Mar. 2023
Those fears may have been irrational, given the unique circumstances that contributed to SVB’s collapse.
—Jeff Stein, Anchorage Daily News, 13 Mar. 2023
Some of the criticism this season directed at Davis, a dynamic 6-foot-1 guard who makes shots from all over the court, was completely irrational.
—Dan Wolken, USA TODAY, 6 Mar. 2023
Her story offers a window into the confounding, seemingly irrational world of insurance coverage, one that’s given rise to a network of billing gurus dedicated to helping patients fight denials.
—Tara Bannow, STAT, 2 Mar. 2023
Parents are trained to validate the feelings of their teenagers, as irrational as those feelings may seem.
—Matt Richtel, BostonGlobe.com, 27 Aug. 2022
Someone with agoraphobia may be aware that their fear is irrational, yet are unable to overcome it.
—Korin Miller, Health, 5 Feb. 2023
Amazing scientific achievements, like the COVID-19 vaccines, are met and matched by irrational beliefs in conspiracies and miracle cures.
—Jim Kiest, San Antonio Express-News, 9 Sep. 2021
But riveted mankind is hopelessly addicted to the irrational, with reliably disastrous results, planetwide.
—Alison Fishburn, Longreads, 17 Sep. 2022
On the back of the acquisitions of AirTerra and Quiet Logistics in 2021, AEO seemed to do the irrational by bringing onstream capacities and capabilities that significantly exceeded its own item demand.
—Niall Murphy, Forbes, 17 June 2022
The moral, social, and epistemic void in which Germans found themselves after defeat was filled, at least for a time, by the irrational.
—Richard J. Evans, The New Republic, 1 Dec. 2021
As such, any attempt to explain it will run sooner or later into the wall of the irrational.
—Phil Klay, Harper’s Magazine, 23 Nov. 2021
But feeling anxious right now is not at all out of line or irrational.
—Jessica Dulong, CNN, 31 Aug. 2021
Attempting to appease the loudest to the detriment of the community only emboldens the irrational and silences those looking to have productive conversation.
—Benjamin Ayanian, Star Tribune, 5 May 2021
To believe in the return of a long-dead child reflects the anguish of the believer and, of course, a tendency to embrace the irrational.
—Dorothy Rabinowitz, WSJ, 29 Apr. 2021
We are all steered by a mixture of the rational and the irrational.
—Christopher Beha, Harpers Magazine, 5 Jan. 2021
See More
These examples are programmatically compiled from various online sources to illustrate current usage of the word ‘irrational.’ Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
irrational — перевод на русский
/ɪˈræʃənl/
You want to know about irrational and imaginary numbers?
Это я иррационально понимаю; сеют несуществующие числа, величины.
Even despite the fact that this society, as a whole, is deeply irrational.
Даже не смотря на то, что это общество, в целом, глубоко иррационально.
Perception is irrational.
Восприятие иррационально.
That was irrational of you.
Это было иррационально с твоей стороны.
Irrational things.
Иррационально.
Показать ещё примеры для «иррационально»…
You’re being irrational!
Ты ведёшь себя неразумно!
Of course I’m being irrational!
Конечно, я веду себя неразумно!
His behavior is irrational.
Он ведет себя неразумно.
What’s irrational is cooperating with the enemy.
Неразумно сотрудничать с врагом.
Показать ещё примеры для «неразумно»…
— That is irrational, illogical.
— Это нерационально, нет логики.
It functions irrationally.
Она функционирует нерационально.
-That would be irrational.
— Это было бы нерационально.
And I know, it’s crazy and irrational, but, Sam, I can’t help thinking that last night, when her time came, she must have wondered where I was.
И я знаю, это глупо и нерационально, но… О, Сэм, я не могу перестать думать о том, что прошлой ночью, когда пришло ее время, она должно быть думала, где же я.
What I should do is just shoot for the next three weeks irrationally.
Я должен нерационально распорядиться тремя неделями.
Показать ещё примеры для «нерационально»…
You’re being totally irrational.
Ты ведешь себя абсолютно нелогично.
See, see how irrational I get when you hold out on me?
Видишь, как я нелогично мыслю, когда ты что-то утаиваешь?
While Eric could organize something like this from prison, it would be irrational and only hurt his goal of mutant prosperity.
По идее, Эрик мог бы организовать это из тюрьмы, но это было бы так нелогично и вредило б его цели процветания мутантов.
Look, you’re being irrational.
Ты ведешь себя нелогично.
I thought she said, «I’m suddenly and irrationally defending the patient’s strong career, «even though in reality she’s just a glorified grunt
Мне послышалось, она сказала: «Я внезапно и нелогично стала защищать успешную карьеру пациентки, хоть на самом деле она просто никчёмная брюзга.
Показать ещё примеры для «нелогично»…
Do you want me to be irrational?
Ты хочешь что бы я был рациональным?
I shall be irrational.
Я буду рациональным.
You can’t be irrational.
Нужно оставаться рациональным.
Is that irrational enough for you?
Это достаточно рационально для тебя?
So now I’m the one behaving irrationally?
Значит теперь это я одна виду себя не рационально?
Показать ещё примеры для «рациональным»…
And I know that’s irrational, and…it’s not fair to let my shit hold you back.
Я знаю, что это глупо и не честно, что мои страхи не дают тебе двигаться дальше.
When I hear it out loud, it almost sounds irrational.
Когда я слышу это со стороны — звучит почти глупо.
It’s irrational, I know, but I do it anyway.
Это глупо, я знаю, но все равно делаю.
— I know it’s irrational.
— Я понимаю, это глупо.
It is not irrational.
— Это не глупо.
Показать ещё примеры для «глупо»…
You may find you suffer for some time a totally irrational feeling of depression P.N.D., as we doctors call it.
Некоторое время вы можете ощущать абсолютно беспричинные приступы депрессии P.N.D., как мы, врачи, это называем.
These sudden irrational outbursts, Hector… did they begin in childhood or in puberty?
Эти беспричинные вспышки, Гектор… с вами такое было в детстве или юности?
It’s better than sitting college out because you irrationally hate yourself.
Это лучше, чем вообще никуда не подавать из-за твоей беспричинной ненависти к себе.
Not irrationally, though.
Не беспричинной.
This irrational madness seemed repulsive to him.
Это беспричинное сумасшествие Вызывало у него отвращение.
Показать ещё примеры для «беспричинные»…
I mean, he kept going on and on, completely irrational.
Ведь он продолжал напирать и напирать, никакого здравого смысла.
Tom, you’re being completely irrational.
Том, в твоих словах сейчас нет никакого здравого смысла.
But the point is, the man is totally irrational.
Но суть в том, что он совершенно лишён здравого смысла.
His desperation’s making him irrational.
Отчаяние лишает его здравого смысла.
But you cannot reason with someone who is being irrational, whether it be the rebels or the major.
Но нельзя разумно разговаривать с теми, кто лишен здравого смысла, будь это повстанцы или майор.
Показать ещё примеры для «здравого смысла»…
If Amelia is involved, he could become irrational -— self-destructive even.
Если Амелия вовлечена, он может стать безрассудным -— даже саморазрушительным.
And losing Daisy has made you irrational.
И потеря Дейзи сделала тебя безрассудным.
Irreversible, irreparable, irrational ruin!
Необратимый, безвозвратный, безрассудный крах!
Irrational things.
Безрассудно оступаются.
He’s probably sleep deprived and irrational.
Вероятно, он изнурён недосыпанием и безрассуден.
Показать ещё примеры для «безрассудным»…
Fear can drive one to irrational acts.
От страха все мы совершаем необдуманные поступки.
Our history is a history of irrational acts.
Вся наша история состоит из необдуманных поступков.
«My journey has been impulsive, irrational,»
» Моя поездка была импульсивной, необдуманной »
He’s a good man who did an irrational thing, acting out of passion and impulse.
Он хороший человек, который совершил необдуманный поступок, поддавшись эмоциям.
We all know that you act irrationally.
Нам всем известно, что ты действуешь необдуманно.
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иррациональный, нерациональный, иррациональное число
прилагательное ↓
- неразумный
irrational being — глупое /неразумное/ существо 
irrational behaviour — глупое /неразумное/ поведение
irrational fear — безрассудный страх
- неразумный, нелогичный, противоречащий здравому смыслу; нерациональный
- мат. иррациональный
существительное
- неразумное существо; человек, лишённый здравого смысла; слабоумный
- мат. иррациональное число
Мои примеры
Словосочетания
as irrational and surreal as a dream — абсурдный и нереальный, как сновидение
irrational creature — тварь неразумная
accessory irrational — присоединённая иррациональность
normal form of an irrational expression — нормальный вид иррационального выражения
algebraic irrational — алгебраическое иррациональное число
irrational algebraic surface — иррациональная алгебраическая поверхность
irrational behavior — иррациональное поведение; неразумное поведение
irrational call option — иррациональный опцион «колл»
irrational criminal — субъект преступления по иррациональным мотивам
irrational demand — нерациональный спрос
recursively irrational number — рекурсивно иррациональное число
Примеры с переводом
He’s becoming increasingly irrational.
Он становится всё более безрассудным /неразумным/.
It was irrational to react in that manner.
Неразумно было так реагировать.
She had an irrational fear of cats.
Она патологически боялась кошек.
This theory holds for all irrational numbers.
Эта теория верна для всех иррациональных чисел.
He became irrational as the fever got worse.
С усилением жара он потерял способность трезво мыслить.
He had an irrational fear and hatred of foreigners.
Он испытывал иррациональный страх и ненависть к иностранцам.
Примеры, ожидающие перевода
She couldn’t help it if she was being irrational. 
Для того чтобы добавить вариант перевода, кликните по иконке ☰, напротив примера.
Возможные однокоренные слова
irrationality — иррациональность, нелогичность, неразумность, абсурдность
irrationalism — иррационализм, иррационализм, обозначение идеалистических течений в философии
irrationally — неразумно, нерационально, нерационально, иррационально
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- British
This shows grade level based on the word’s complexity.
[ ih-rash—uh-nl ]
/ ɪˈræʃ ə nl /
This shows grade level based on the word’s complexity.
adjective
without the faculty of reason; deprived of reason.
without or deprived of normal mental clarity or sound judgment.
not in accordance with reason; utterly illogical: irrational arguments.
not endowed with the faculty of reason: irrational animals.
Mathematics.
- (of a number) not capable of being expressed exactly as a ratio of two integers.
- (of a function) not capable of being expressed exactly as a ratio of two polynomials.
Algebra. (of an equation) having an unknown under a radical sign or, alternately, with a fractional exponent.
Greek and Latin Prosody.
- of or relating to a substitution in the normal metrical pattern, especially a long syllable for a short one.
- noting a foot or meter containing such a substitution.
noun
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Origin of irrational
First recorded in 1425–75; late Middle English word from Latin word irratiōnālis.See ir-2, rational
OTHER WORDS FROM irrational
ir·ra·tion·al·ly, adverbir·ra·tion·al·ness, nounnon·ir·ra·tion·al, adjective, nounnon·ir·ra·tion·al·ly, adverb
non·ir·ra·tion·al·ness, noun
Words nearby irrational
irradiance, irradiant, irradiate, irradiation, irradicable, irrational, irrationalism, irrationality, irrationalize, irrational number, Irrawaddy
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Words related to irrational
aberrant, absurd, crazy, foolish, incoherent, insane, preposterous, ridiculous, stupid, unreasonable, unsound, unwise, wrong, invalid, loony, raving, silly, wild, brainless, cockamamie
How to use irrational in a sentence
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You have to strike a balance where you’re not telling people that what they’re saying is irrational, silly, crazy.
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It’s possible that today’s market is an indication of things to come, where fundamentals play a larger part in valuations, as opposed to the irrational exuberance that has persisted in recent months within tech.
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John Coates, a Wall Street trader turned neuroscientist, considers the molecule of “irrational exuberance” in The Hour Between Dog and Wolf.
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Primarily, this problem is a byproduct of “irrational exuberance” in the early 2000s and the use of public sector banks by successive governments to propel the economy.
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Only a few months ago, this type of behavior would have been considered excessive, irrational, even pathological, and certainly not healthy.
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The Samaritan guidelines are written around the assumption that suicide is a purely irrational act, an act spurred by illness.
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The fact that the virus is still alive has sustained many safety concerns, both rational and irrational, about its use.
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The writing team behind these videos are some seriously mad comedy crackheads, and they manage some brilliantly irrational bits.
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Farah, of course, is not alone in holding this acrobatically irrational view.
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To a certain degree, there is an irrational sense of betrayal.
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He was, I knew, a deep, thinly-covered tank of resentments and quite irrational moral rages.
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Suddenly my irrational complaint was silenced as certain words of Saint Paul to the Corinthians reverberated in my mind.
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Animals, irrational animals, had told the secret, and birds of the air had carried the matter.
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It seemed to me that he was foolish and irrational, altogether unlike himself.
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It is an irrational practice, even when adopted by military tribunals.
British Dictionary definitions for irrational
adjective
inconsistent with reason or logic; illogical; absurd
incapable of reasoning
maths
- not rational
- (as noun)an irrational
prosody (in Greek or Latin verse)
- of or relating to a metrical irregularity, usually the occurrence of a long syllable instead of a short one
- denoting a metrical foot where such an irregularity occurs
Derived forms of irrational
irrationally, adverbirrationalness, noun
Collins English Dictionary — Complete & Unabridged 2012 Digital Edition
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