contrary to rule or accepted order or general practice; irregular hiring practices'

(used of the military) not belonging to or engaged in by regular army forces; irregular troops; irregular warfare'

(of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement

a member of an irregular armed force that fights a stronger force by sabotage and harassment

[ Syn: guerrilla , guerilla , insurgent ]

merchandise that has imperfections; usually sold at a reduced price without the brand name

[ Syn: second ]

not occurring at expected times

[ Syn: unpredictable ]

falling below the manufacturer's standard; irregular jeans'

deviating from normal expectations; somewhat odd, strange, or abnormal; these days large families are atypical; atypical clinical findings; atypical pneumonia; highly irregular behavior

[ Syn: atypical ]

lacking continuity or regularity; an irregular worker; employed on a temporary basis

[ Syn: temporary ]

(of a surface or shape); not level or flat or symmetrical; walking was difficult on the irregular cobblestoned surface'

independent in behavior or thought; she led a somewhat irregular private life; maverick politicians

[ Syn: maverick , unorthodox ]