Meaning of IRREGULAR in English

IRREGULAR

n.

Function: noun

Date: 15th century

: one that is irregular: as a : a soldier who is not a member of a regular military force b plural : merchandise that has minor defects or that falls next below the manufacturer's standard for firsts

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.