IRREGULAR

Definition of IRREGULAR

(noun)a member of an irregular armed force that fights a stronger force by sabotage and harassment
(noun)merchandise that has imperfections; usually sold at a reduced price without the brand name
(adj)not occurring at a regular rate or fixed intervals
(adj)failing to meet a standard of manufacture due to an imperfection
(adj)deviating from normal expectations; somewhat odd, strange, or abnormal
(adj)lacking continuity or regularity
(adj)(of a surface or shape); not level or flat or symmetrical
(adj)independent in behavior or thought
(adj)contrary to rule or accepted order or general practice
(adj)(used of the military) not belonging to or engaged in by regular army forces
(adj)(of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement