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.

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

plural of irrational number

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

In an irrational manner; without reason; in a manner contrary to reason

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.

plural of irrationality