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单词 irrational
释义

Definition of irrational in English:

irrational

adjective ɪˈraʃ(ə)n(ə)lɪ(r)ˈræʃ(ə)nəl
  • 1Not logical or reasonable.

    irrational feelings of hostility
    Example sentencesExamples
    • But Delta's seemingly irrational behavior has a very logical explanation.
    • I am sort of notorious for my utterly irrational fears.
    • I have an irrational dislike of cell phones.
    • She had never known for her daughter to be so irrational, so crazy.
    • The author of the piece argues that our attitude towards it is mostly irrational prejudice.
    • Solutions that would seem logical to us would seem totally irrational to them.
    • Chris smiled, sure that Seth's fears were completely irrational.
    • Home values have soared to high levels in many countries as irrational exuberance grips the markets.
    • Australians aren't at all used to visceral and irrational hatred directed at them.
    • Power sets the guidelines by which we measure what is reasonable and what is irrational.
    • I believe that the seemingly irrational logic of the national can still promote everyday alliances and popular mobilizations.
    • Booze and cocaine corroded his sanity and left him with a legacy of irrational behaviour.
    • He had a very short fuse and he could be totally irrational at times.
    • By absurd, I do not mean silly, but absurd as is in the illogical or irrational.
    • Identify and uproot irrational beliefs that lead you to place unrealistic demands on yourself.
    • Without that insight, a supplier can encounter fewer surprises by evaluating even seemingly irrational scenarios.
    • Crowds and mobs are not completely irrational, but they have their own logic.
    • The more irrational and illogical someone becomes, the more logical and incisive I become.
    • If it hadn't seemed so irrational, she would have begged him not to go.
    • Their hostility towards each other, however, was tangible and frequently led to quite irrational behaviour.
    Synonyms
    unreasonable, illogical, groundless, baseless, unfounded, unjustifiable, unsound
    absurd, ridiculous, ludicrous, silly, foolish, senseless, nonsensical, laughable, idiotic, stupid, wild
    untenable, implausible, unscientific, arbitrary
    informal crazy, mad
    British informal barmy, daft
    1. 1.1 Not endowed with the power of reason.
      Example sentencesExamples
      • Whenever you encounter a system that seems so irrational, you should ponder what's going on beneath the surface.
      • Man is an irrational being, morals are irrational, and have no metaphysical foundation which make them "real" or worth paying any attention to.
  • 2Mathematics
    (of a number, quantity, or expression) not expressible as a ratio of two integers, and having an infinite and non-recurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2.

    Example sentencesExamples
    • How can mathematical concepts like points, infinitesimally small quantities, or irrational numbers be anything but products of our minds?
    • He considered computation with irrational numbers and polynomials to be part of algebra.
    • A transcendental number is an irrational number that is not a root of any polynomial equation with integer coefficients.
    • What about a seed angle derived from the golden ratio, an irrational number?
    • The square root of 2 is an irrational number because it can't be written as a ratio of two integers.
noun ɪˈraʃ(ə)n(ə)lɪ(r)ˈræʃ(ə)nəl
Mathematics
  • An irrational number or quantity; a surd.

    Example sentencesExamples
    • His commentary to Euclid is of interest because of its discussion of unordered irrationals.
    • Whether such quirks in the irregularity of irrationals have any implications for number theory remains an open question for mathematicians.
    • If we chop off an infinite cfe after a finite number of steps then we will create a rational approximation to the original irrational.
    • Any finite segment can be continued to produce a rational and any finite segment can be continued to produce an irrational.
    • Eudoxus's definition of equal ratios corresponds exactly to the modern theory of irrationals.

Derivatives

  • irrationalize

  • verb ɪˈraʃ(ə)nəlʌɪzɪˈræʃ(ə)nəˌlaɪz
    [with object]
    • Cause to seem irrational.

      they learned about the way emotions irrationalize supposed rational processes
      Example sentencesExamples
      • I have reason to believe that she is about to irrationalize thinking on every issue.
      • When one thinks of planar travel the mind can often be boggled, confused, deceived and irrationalized.
      • The absence of knowledge affects human behaviour by reducing, distorting, and irrationalising the choices made by individuals.

Origin

Late Middle English: from Latin irrationalis, from in- 'not' + rationalis (see rational).

Rhymes

national, passional, rational
 
 

Definition of irrational in US English:

irrational

adjectiveɪ(r)ˈræʃ(ə)nəli(r)ˈraSH(ə)nəl
  • 1Not logical or reasonable.

    irrational feelings of hostility
    Example sentencesExamples
    • The more irrational and illogical someone becomes, the more logical and incisive I become.
    • I believe that the seemingly irrational logic of the national can still promote everyday alliances and popular mobilizations.
    • Crowds and mobs are not completely irrational, but they have their own logic.
    • Chris smiled, sure that Seth's fears were completely irrational.
    • By absurd, I do not mean silly, but absurd as is in the illogical or irrational.
    • Without that insight, a supplier can encounter fewer surprises by evaluating even seemingly irrational scenarios.
    • I am sort of notorious for my utterly irrational fears.
    • She had never known for her daughter to be so irrational, so crazy.
    • Their hostility towards each other, however, was tangible and frequently led to quite irrational behaviour.
    • Solutions that would seem logical to us would seem totally irrational to them.
    • The author of the piece argues that our attitude towards it is mostly irrational prejudice.
    • Booze and cocaine corroded his sanity and left him with a legacy of irrational behaviour.
    • If it hadn't seemed so irrational, she would have begged him not to go.
    • Identify and uproot irrational beliefs that lead you to place unrealistic demands on yourself.
    • But Delta's seemingly irrational behavior has a very logical explanation.
    • Australians aren't at all used to visceral and irrational hatred directed at them.
    • Power sets the guidelines by which we measure what is reasonable and what is irrational.
    • Home values have soared to high levels in many countries as irrational exuberance grips the markets.
    • He had a very short fuse and he could be totally irrational at times.
    • I have an irrational dislike of cell phones.
    Synonyms
    unreasonable, illogical, groundless, baseless, unfounded, unjustifiable, unsound
    1. 1.1 Not endowed with the power of reason.
      Example sentencesExamples
      • Man is an irrational being, morals are irrational, and have no metaphysical foundation which make them "real" or worth paying any attention to.
      • Whenever you encounter a system that seems so irrational, you should ponder what's going on beneath the surface.
  • 2Mathematics
    (of a number, quantity, or expression) not expressible as a ratio of two integers, and having an infinite and nonrecurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2.

    Example sentencesExamples
    • The square root of 2 is an irrational number because it can't be written as a ratio of two integers.
    • A transcendental number is an irrational number that is not a root of any polynomial equation with integer coefficients.
    • He considered computation with irrational numbers and polynomials to be part of algebra.
    • How can mathematical concepts like points, infinitesimally small quantities, or irrational numbers be anything but products of our minds?
    • What about a seed angle derived from the golden ratio, an irrational number?
nounɪ(r)ˈræʃ(ə)nəli(r)ˈraSH(ə)nəl
Mathematics
  • An irrational number.

    Example sentencesExamples
    • His commentary to Euclid is of interest because of its discussion of unordered irrationals.
    • Any finite segment can be continued to produce a rational and any finite segment can be continued to produce an irrational.
    • Whether such quirks in the irregularity of irrationals have any implications for number theory remains an open question for mathematicians.
    • Eudoxus's definition of equal ratios corresponds exactly to the modern theory of irrationals.
    • If we chop off an infinite cfe after a finite number of steps then we will create a rational approximation to the original irrational.

Origin

Late Middle English: from Latin irrationalis, from in- ‘not’ + rationalis (see rational).

 
 
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更新时间:2024/12/22 23:51:17