|1.||[ adjective ] contrary to rule or accepted order or general practice|
"irregular hiring practices"
|Related terms:||regular arrhythmic improper substandard grab casual strong asymmetrical randomised randomized rough illegal asymmetrical unrhythmical unsystematic unsteady regularity|
|2.||[ adjective ] (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement|
|3.||[ adjective ] not occurring at expected times|
|4.||[ adjective ] independent in behavior or thought|
"she led a somewhat irregular private life" "maverick politicians"
|5.||[ adjective ] (military) used of independent armed resistance forces|
|Synonyms:||guerrilla underground guerilla|
"guerrilla warfare" "partisan forces"
|6.||[ noun ] (military) a member of an irregular armed force that fights a stronger force by sabotage and harassment|
|Synonyms:||guerrilla insurgent guerilla|
|Related terms:||warrior Maquis urban_guerrilla che_guevara fedayee guerilla_force|
|7.||[ adjective ] deviating from what is usual or common or to be expected; often somewhat odd or strange|
"these days large families are atypical" "highly irregular behavior"
|8.||[ adjective ] (work) lacking continuity or regularity|
"an irregular worker" "employed on a temporary basis"
|9.||[ adjective ] (military) used of the military; not belonging to or engaged in by regular army forces|
"irregular troops" "irregular warfare"
|Related terms:||regular partisan|
|10.||[ adjective ] of a surface; not level or flat|
"walking was difficult on the irregular cobblestoned surface"
|11.||[ noun ] (business) merchandise that has imperfections; usually sold at a reduced price without the brand name|