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Meaning of word irrational from English dictionary with examples, synonyms and antonyms.

irrational   noun

Meaning : A real number that cannot be expressed as a rational number.

Synonyms : irrational number

irrational   adjective

Meaning : Not consistent with or using reason.

Example : Irrational fears.
Irrational animals.

Consistent with or based on or using reason.

Rational behavior.
A process of rational inference.
Rational thought.
rational

Meaning : Real but not expressible as the quotient of two integers.

Example : Irrational numbers.

Capable of being expressed as a quotient of integers.

Rational numbers.
rational