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 this synonym:0.0 / 0 votes

1. irrational number, irrationaladjective

   a real number that cannot be expressed as a rational number

   Synonyms:
   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. Andrew Bernstein:

   For the first time in history, the rational and the good are fully armed in the battle against evil. Here we finally find the answer to our paradox; now we can understand the nature of the social power held by evil. Ultimately, the evil, the irrational, truly has no power. The evil men’s control of morality is transient; it lives on borrowed time made possible only by the errors of the good. In time, as more honest men grasp the truth, evil’s stranglehold will be easily broken.

2. Yaakov Menken:

   Repeatedly accusing the Jewish state of Israel of ‘genocide,' ‘apartheid,' and other fictitious crimes while praising China, a country that is putting Muslims in internment camps, indicates an irrational hatred of Jews and not a concern for human rights, with regards to Jews, diversity heads seem to share much in common with grand wizards of the Ku Klux Klan, and it is clear that the entire field needs to be reevaluated before more Jewish students are placed at unnecessary risk.

3. Jack Petocz:

   On the day of protest, they tried to take away our Pride flags and stop us from distributing them at the event, i resisted, because Pride flags are a symbol of our community, of our embrace of our queerness, and when you have these bills trying to target and silence queer youth, I didn't understand. I thought it was irrational to try to take away our Pride flags at a rally that is about anti-gay legislation.

4. Thiruman Archunan:

   Nature never allows man to understand it, however intelligent he thinks he may be. It tempts his reason by offering an initial success only to seduce and pull him on its side later, once for all. Finally, a man is left to sing the irrational songs of the nature!

5. Polk County:

   Never did Bryan Riley make a threat, just a bizarre, irrational statement but no threats of violence.