Misspelling of irritable.

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

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.

plural of irrational

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

plural of irrational number