- Incapable of being reduced, or brought into a
different state; incapable of restoration to its proper or normal
condition; as, an irreducible hernia. - Incapable of being reduced to a simpler form of
expression; as, an irreducible formula.
Meaning of 'irreducible' (Princeton's WordNet)
1 . irreducible
[ a]
Meaning (1): - incapable of being made smaller or simpler