Not rational; unfounded or nonsensical. / (mathematics, arithmetic, number theory, not comparable) Of a real number, that cannot be written as the ratio of two integers.

A real number that can not be expressed as the quotient of two integers, an irrational number.

plural of irrational

Misspelling of irritable.

plural of irrational number

(mathematics) Any real number that cannot be expressed as a ratio of two integers.

The quality of being irrational.

A philosophical movement formed as a cultural reaction against positivism in the early 20th century.

One who is irrational in their beliefs or ideas. / A follower of irrationalism.

The quality or state of being irrational; want of the faculty or the quality of reason; fatuity. / Something which is irrational or brought forth by irrational action, judgement, idea or thought.