Synonyms for Irrational
ɪˈræʃ ə nlir·ra·tional

WiktionaryRate these synonyms:0.0 / 0 votes

1. irrationaladjective

   Antonyms:
   rational

English Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. irrational

   That is absurd which is contrary to the first principles of reasoning; as, that a part should be greater than the whole is absurd. A paradoxical statement appears at first thought contradictory or absurd, while it may be really true. Anything is irrational when clearly contrary to sound reason, foolish when contrary to practical good sense, silly when petty and contemptible in its folly, erroneous when containing error that vitiates the result, unreasonable when there seems a perverse bias or an intent to go wrong. Monstrous and preposterous refer to what is overwhelmingly absurd; as, "O monstrous! eleven buckram men grown out of two," Shakespeare 1 King Henry IV, act ii, sc. 4. The ridiculous or the nonsensical is worthy only to be laughed at. The lunatic's claim to be a king is ridiculous; the Mother Goose rimes are nonsensical. Compare INCONGRUOUS.

   Synonyms:
   absurd, anomalous, chimerical, erroneous, false, foolish, ill-advised, ill-considered, ill-judged, inconclusive, incorrect, infatuated, ludicrous, mistaken, monstrous, nonsensical, paradoxical, preposterous, ridiculous, senseless, stupid, unreasonable, wild

   Antonyms:
   certain, consistent, demonstrable, demonstrated, established, incontestable, incontrovertible, indisputable, indubitable, infallible, logical, rational, reasonable, sagacious, sensible, sound, substantial, true, undeniable, unquestionable, wise

Princeton's WordNetRate these synonyms:0.0 / 0 votes

1. irrational number, irrationaladjective

   a real number that cannot be expressed as a rational number

   Synonyms:
   irrational, irrational number

   Antonyms:
   lucid, rational, intelligent, thinking(a), sane, demythologized, reasonable, demythologised, reasoning(a), logical, coherent

2. irrationaladjective

   not consistent with or using reason

   "irrational fears"; "irrational animals"

   Antonyms:
   rational, coherent, reasonable, thinking(a), lucid, demythologized, demythologised, sane, intelligent, logical, reasoning(a)

3. irrationaladjective

   real but not expressible as the quotient of two integers

   "irrational numbers"

   Antonyms:
   rational, sane, coherent, logical, lucid, reasonable, thinking(a), intelligent, demythologized, demythologised, reasoning(a)

Matched Categories

1. • Math

Dictionary of English SynonymesRate these synonyms:5.0 / 1 vote

1. irrationaladjective

   Synonyms:
   brutish, brute, void of reason, without reason

2. irrationaladjective

   Synonyms:
   absurd, unreasonable, preposterous, foolish, silly, unwise, injudicious, extravagant

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "irrational":

   unreasonable, absurd, illogical, senseless, unreasonably, mindless, unsound

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How to use Irrational in a sentence?

1. Edgar Allan Poe:

   It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.

2. Todd Sears:

   Doing good for the LGBT community is a business imperative and does actually impact the bottom line, markets are rational and discrimination like this is irrational. It was never a really hard push to get these Wall Street firms to support this.

3. Anthony Fauci:

   You can understand that when people have been following a certain trend for a considerable period of time that it may take time for them to adjust, i would not say that's irrational. I would say that's understandable.

4. Bob Corker:

   To browbeat somebody for just having a question or speak down to someone because they have a concern. To say that they're irrational or they don't understand who we are as a nation, or something like that. Yeah, it doesn't help. It hurts, what would help, and I think this was a universal message in the meeting we just had -- on both sides of the aisle, I might add -- is that someone needs to explain clearly to the American people the processes we go through before we admit refugees.

5. Zhao Lijian:

   The Australian government's behaviour ... blatantly violates the legitimate rights and interests of Chinese journalists there and caused severe harm to the physical and mental health of the journalists and their families, we ask Australia to immediately stop such blatant irrational behaviors, stop harassing and oppressing Chinese personnel in Australia under whatever pretext.