- not reducible; incapable of being reduced or of being diminished or simplified further: the irreducible minimum.
- incapable of being brought into a different condition or form.
- Mathematics.
- of or relating to a polynomial that cannot be factored.
- of or relating to a group that cannot be written as the direct product of two of its subgroups.
- not able to be reduced or lessened
- not able to be brought to a simpler or reduced form
- maths
- (of a polynomial) unable to be factorized into polynomials of lower degree, as (x ² + 1)
- (of a radical) incapable of being reduced to a rational expression, as √(x + 1)