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Adjective: irrational  i'ra-sh(u-)n(u)l
  1. Not consistent with or using reason
    "irrational fears"; "irrational animals"
  2. (mathematics) real but not expressible as the quotient of two integers
    "irrational numbers"
Noun: irrational  i'ra-sh(u-)n(u)l
  1. A real number that cannot be expressed as a rational number
    - irrational number

Derived forms: irrationals

See also: blind, illogical, incoherent, nonrational, reasonless, superstitious, unlogical, unreasonable, unreasoning

Type of: real, real number

Antonym: rational

Encyclopedia: Irrational