What does rational mean?

Definitions for rational
ˈræʃ ə nl, ˈræʃ nlra·tio·nal

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

Princeton's WordNet

  1. rational number, rationaladjective

    an integer or a fraction

  2. rationaladjective

    consistent with or based on or using reason

    "rational behavior"; "a process of rational inference"; "rational thought"

  3. intellectual, rational, noeticadjective

    of or associated with or requiring the use of the mind

    "intellectual problems"; "the triumph of the rational over the animal side of man"

  4. rationaladjective

    capable of being expressed as a quotient of integers

    "rational numbers"

  5. rationaladjective

    having its source in or being guided by the intellect (as distinguished from experience or emotion)

    "a rational analysis"

Samuel Johnson's Dictionary

  1. RATIONALadjective

    Etymology: rationalis, Latin.

    What higher in her society thou find’st
    Attractive, humane, rational, love still. John Milton.

    When the conclusion is deduced from the unerring dictates of our faculties, we say the inference is rational. Joseph Glanvill.

    If your arguments be rational, offer them in as moving a manner as the nature of the subject will admit; but beware of letting the pathetick part swallow up the rational. Jonathan Swift.

Webster Dictionary

  1. Rationaladjective

    relating to the reason; not physical; mental

  2. Rationaladjective

    having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning

  3. Rationaladjective

    agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious; as, rational conduct; a rational man

  4. Rationaladjective

    expressing the type, structure, relations, and reactions of a compound; graphic; -- said of formulae. See under Formula

  5. Rationalnoun

    a rational being


  1. Rational

    Consistent, logical.

Chambers 20th Century Dictionary

  1. Rational

    rash′on-al, adj. pertaining to the reason: endowed with reason: agreeable to reason: sane: intelligent: judicious: (arith., alg.) noting a quantity which can be exactly expressed by numbers.—n. Rationabil′ity, the possession of reason.—adj. Rat′ionable, reasonable.—ns. Rationā′le, a rational account of anything, with reasons for its existence: a theoretical explanation or solution; Rationalisā′tion, subjection to rational principles.—v.t. Rat′ionalise, to interpret like a rationalist: to think for one's self.—v.i. to rely entirely or unduly on reason.—ns. Rat′ionalism, the religious system or doctrines of a rationalist; Rat′ionalist, one who believes himself guided in his opinions solely by reason, independently of authority, esp. in regard to religion—denying supernatural revelation.—adjs. Rationalist′ic, -al, pertaining to, or in accordance with, the principles of rationalism.—adv. Rationalist′ically, in a rationalistic manner.—n. Rational′ity, quality of being rational: the possession or due exercise of reason: reasonableness.—adv. Rat′ionally, reasonably.—n. Rat′ionalness.—n.pl. Rat′ionals, dress for women convenient for bicycling, &c.—breeches instead of skirts.

  2. Rational

    rash′on-al, n. the breast-plate of the Jewish high-priest: a pectoral worn by a bishop. [L. rationale, a mistaken rendering in the Vulgate of the Gr. logion, oracle.]

Editors Contribution

  1. rational

    The act and fact of being rational.

    The directors of the unity government were just, fair, transparent and had an accurate, perfect, simple and specific sense of justice.

    Submitted by MaryC on April 12, 2020  

  2. rational

    To have the ability to reason.

    She was so fair, just and rational, she has the remarkable capacity to think things through in seconds and see what works.

    Submitted by MaryC on February 12, 2020  

Matched Categories

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'rational' in Spoken Corpus Frequency: #3966

  2. Adjectives Frequency

    Rank popularity for the word 'rational' in Adjectives Frequency: #532

How to pronounce rational?

How to say rational in sign language?


  1. Chaldean Numerology

    The numerical value of rational in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of rational in Pythagorean Numerology is: 9

Examples of rational in a Sentence

  1. Dudley Sharp:

    Creation from something is more rational than creation from nothing.

  2. Michael Cole:

    The developments in Russia demonstrate the assumptions that autocratic leadership will always make rational decisions have been thoroughly destroyed by Vladimir Putin -- in Vladimir Putin decision to invade Ukraine, it does not mean that Xi Jinping will tomorrow decide to use force against Taiwan because Xi Jinping friend in Moscow decided to do so against Ukraine.

  3. Pounds Pitt:

    I’ve always been really logical and rational.

  4. Hartwell Lin:

    There's a ton of anxiety in the health care industry about this, and I'm glad to see that as things start to settle down,( we can) approach this in a very rational way, and people feel like they can provide care to patients in a safe way.

  5. Jonathan Isaac:

    I believe that what I’m saying is rational, and it’s free…We live in the land of the free and the home of the brave and we have the opportunity and the platform to say what it is that we feel that is right. I’m taking that right to do so, not just for me, but for all of those people who feel like they don’t have a voice.

Popularity rank by frequency of use


Translations for rational

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    easily diffused or spread as from one person to another
    • A. butch
    • B. contagious
    • C. eminent
    • D. equivalent

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