irregular
noun
a member of an irregular armed force that fights a stronger force by sabotage and harassment
merchandise that has imperfections; usually sold at a reduced price without the brand name
Synonymssecond
adjective
contrary to rule or accepted order or general practice
“irregular hiring practices”
Oppositesregularnot occurring at a regular rate or fixed intervals
“an irregular heartbeat”
Synonymsunpredictable(used of the military) not belonging to or engaged in by regular army forces
“irregular troops”
“irregular warfare”
Oppositesregular(of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
Oppositesregularfailing to meet a standard of manufacture due to an imperfection
“an irregular pair of jeans”
deviating from normal expectations; somewhat odd, strange, or abnormal
“these days large families are atypical”
“atypical clinical findings”
Synonymsatypicallacking continuity or regularity
“an irregular worker”
“employed on a temporary basis”
Synonymstemporary(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”
Source: WordNet 3.1, Princeton University
