irrational

ir·ra·tion·al  (-rsh-nl)

adj.

1.

a. Not endowed with reason.

b. Affected by loss of usual or normal mental clarity; incoherent, as from shock.

c. Marked by a lack of accord with reason or sound judgment: an irrational dislike.

2.

a. Being a syllable in Greek and Latin prosody whose length does not fit the metric pattern.

b. Being a metric foot containing such a syllable.

3. Mathematics Of or relating to an irrational number.

n. Mathematics

An irrational number.

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ir·ration·al·ly adv.

ir·ration·al·ness n.

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irrational

Adjective

1. not based on logical reasoning

2. incapable of reasoning

3. Maths (of an equation or expression) involving radicals or fractional exponents

irrationality n
irrationally adv

Thesaurus

Noun	1.	irrational - a real number that cannot be expressed as a rational number irrational number real, real number - any rational or irrational number transcendental number - an irrational number that is not algebraic algebraic number - root of an algebraic equation with rational coefficients
Adj.	1.	irrational - not consistent with or using reason; "irrational fears"; "irrational animals" incoherent - without logical or meaningful connection; "a turgid incoherent presentation" illogical, unlogical - lacking in correct logical relation unreasonable - not reasonable; not showing good judgment rational - consistent with or based on or using reason; "rational behavior"; "a process of rational inference"; "rational thought"
	2.	irrational - real but not expressible as the quotient of two integers; "irrational numbers" math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement rational - capable of being expressed as a quotient of integers; "rational numbers"

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irrational

adjective 1. illogical, crazy, silly, absurd, foolish, unreasonable, unwise, preposterous, idiotic, nonsensical, unsound, unthinking, injudicious, unreasoning << OPPOSITE rational

adjective 2. senseless, wild, crazy, unstable, insane, mindless, demented, aberrant, brainless, off the air Austral. (slang)

Translations

irrational [ɪˈræʃənl] adj → irracional

irrational [ɪˈræʃənl] adj → irrationnel(le); [person] → qui n'est pas rationnel

irrational [ɪˈræʃənl] adj → irrational

irrational [ɪˈræʃənl] adj → irrazionale; irragionevole; illogico/a