Dictionary Definition
irrational adj
1 not consistent with or using reason;
"irrational fears"; "irrational animals" [ant: rational]
2 real but not expressible as the quotient of two
integers; "irrational numbers" [ant: rational]
User Contributed Dictionary
English
Pronunciation
- ĭră'sh(ə)nəl, /ɪˈræʃ(ə)nəl/, /I"r
Extensive Definition
Irrational may refer to:
- Irrationality, in philosophy
- Irrational rhythm, in music
- Irrational exuberance, in economics
- Irrational Games, a game developer now known as 2K Boston/2K Australia
In mathematics:
See also
irrational in German: Irrational
(Begriffsklärung)
irrational in French: Irrationnel
Synonyms, Antonyms and Related Words
abnormal, absonant, algorismic, algorithmic, aliquot, bereft of reason,
bigoted, brainless, brainsick, cardinal, contradictory, contrary to
reason, crackbrained, cracked, crazed, crazy, daft, decimal, deluded, demented, deprived of reason,
deranged, differential, digital, disoriented, distraught, even, exponential, extravagant, extreme, extremist, fallacious, fanatic, faulty, figural, figurate, figurative, finite, flawed, flighty, foolish, fractional, haggard, hallucinated, headless, ignorant, ill-advised,
ill-considered, ill-contrived, ill-devised, ill-gauged, ill-judged,
illogical, imaginary, impair, impolitic, impossible, imprudent, inadvisable, inauthentic, inconclusive, incongruous, inconsequent, inconsequential,
inconsiderate,
inconsistent,
indiscreet, inept, inexpedient, infinite, injudicious, inordinate, insane, insensate, integral, invalid, lackbrained, lean-minded,
lean-witted, loco, logarithmic, logometric, loose, lunatic, mad, maddened, manic, mazed, mental, mentally deficient,
meshuggah, mindless, misadvised, misguided, moon-struck,
myopic, negative, non compos, non
compos mentis, nonrational, nonscientific, not all
there, not bright, not following, not right, numeral, numerary, numerative, numeric, odd, of little brain, of unsound
mind, off, ordinal, overenthusiastic,
overreligious,
overzealous,
pair, paralogical, pea-brained,
perfervid,
pin-brained, positive,
possible, prime, psycho, queer, rabid, radical, rational, real, reasonless, reciprocal, reckless, self-annulling,
self-contradictory, self-refuting, senseless, shortsighted, sick, slackminded, slackwitted, sophistic, stark-mad,
stark-staring mad, strange, submultiple, surd, tetched, thoughtless, touched, transcendental, ultrazealous, unadvised, unauthentic, unbalanced, unconnected, unconsidered, undiscerning, unforeseeing, ungifted, unhinged, unintellectual, unintelligent, unphilosophical,
unreasonable,
unreasoning,
unreflecting,
unreflective,
unsane, unscientific, unseeing, unsensible, unsettled, unsound, untalented, unthinking, unthoughtful, unwise, wandering, wild-eyed,
wild-looking, without reason, witless, zealotic