What does irrational mean?

Definitions for irrational
ɪˈræʃ ə nlir·ra·tional

Here are all the possible meanings and translations of the word irrational.

Princeton's WordNet

  1. irrational number, irrationaladjective

    a real number that cannot be expressed as a rational number

  2. irrationaladjective

    not consistent with or using reason

    "irrational fears"; "irrational animals"

  3. irrationaladjective

    real but not expressible as the quotient of two integers

    "irrational numbers"

GCIDE

  1. irrationaladjective

    Not according to reason; having no rational basis; clearly contrary to reason; easily disproved by reasoning; absurd; -- of assertions and beliefs. Hence, of actions: foolish; unreasonable.

    Etymology: [L. irrationalis: cf. F. irrationnel. See In- not, and Rational.]

Wiktionary

  1. irrationalnoun

    A real number that can not be expressed as the quotient of two integers, an irrational number.

    Etymology: From irrationalis, from ir- + rationalis.

  2. irrationaladjective

    Not rational; unfounded or nonsensical.

    an irrational decision

    Etymology: From irrationalis, from ir- + rationalis.

  3. irrationaladjective

    Of a real number, that cannot be written as the ratio of two integers.

    The number uE0009599uE001 is irrational.

    Etymology: From irrationalis, from ir- + rationalis.

Webster Dictionary

  1. Irrationaladjective

    not rational; void of reason or understanding; as, brutes are irrational animals

    Etymology: [L. irrationalis: cf. F. irrationnel. See In- not, and Rational.]

  2. Irrationaladjective

    not according to reason; absurd; foolish

    Etymology: [L. irrationalis: cf. F. irrationnel. See In- not, and Rational.]

  3. Irrationaladjective

    not capable of being exactly expressed by an integral number, or by a vulgar fraction; surd; -- said especially of roots. See Surd

    Etymology: [L. irrationalis: cf. F. irrationnel. See In- not, and Rational.]

Chambers 20th Century Dictionary

  1. Irrational

    ir-rash′un-al, adj. void of reason or understanding: absurd.—n. Irrational′ity.—adv. Irra′tionally.—Irrational numbers, a term applied to those roots of numbers which cannot be accurately expressed by a finite number of figures—e.g. √2 is an irrational number.

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Numerology

  1. Chaldean Numerology

    The numerical value of irrational in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of irrational in Pythagorean Numerology is: 9

Examples of irrational in a Sentence

  1. Mariana Fulger:

    Life without a taste of irrational, of crazy, is a boring book.

  2. Alan Greenspan:

    How do we know when irrational exuberance has unduly escalated asset values

  3. Anuj Somany:

    Woman can't support her selfish thought with a wise man's proverb, so she has to take the help of only a wicked person's quote to bolster her irrational points.

  4. Auguste Comte, Philosophie Positive (1830):

    Every attempt to employ mathematical methods in the study of chemical questions must be considered profoundly irrational and contrary to the spirit of chemistry... If mathematical analysis should ever had prominent place in chemistry - an aberration, which is happily almost impossible - it would be a rapid and widespread degeneration of that science.

  5. Dr. Thomas Arnold Mindell:

    The more I work with the body, keeping my assumptions in a temporary state of reservation, the more I appreciate and sympathize with a given "disease." The body no longer appears as a sick or irrational demon, but as a process with its own inner logic and wisdom.

Images & Illustrations of irrational

  1. irrationalirrationalirrationalirrationalirrational

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Translations for irrational

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    (law) the act of substituting of one creditor for another
    • A. subrogation
    • B. collation
    • C. howdah
    • D. jocularity

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