| Noun | 1. | irregular - a member of an irregular armed force that fights a stronger force by sabotage and harassmentMaquis, Maquisard - a guerrilla fighter in the French underground in World War II warrior - someone engaged in or experienced in warfare | |
| 2. | irregular - merchandise that has imperfections; usually sold at a reduced price without the brand namemerchandise, product, wares - commodities offered for sale; "good business depends on having good merchandise"; "that store offers a variety of products" | |
| Adj. | 1. | irregular - contrary to rule or accepted order or general practice; "irregular hiring practices"illegal - prohibited by law or by official or accepted rules; "an illegal chess move" rough, unsmooth - having or caused by an irregular surface; "trees with rough bark"; "rough ground"; "a rough ride"; "rough skin"; "rough blankets"; "his unsmooth face"; "unsmooth writing" unsteady - subject to change or variation especially in behavior; "her unsteady walk"; "his hand was unsteady as he poured the wine"; "an unsteady voice" asymmetric, asymmetrical - characterized by asymmetry in the spatial arrangement or placement of parts or components unsystematic - lacking systematic arrangement or method or organization; "unsystematic and fragmentary records"; "he works in an unsystematic manner" regular - in accordance with fixed order or procedure or principle; "his regular calls on his customers"; "regular meals"; "regular duties" | |
| 2. | irregular - (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacementregular - (of solids) having clear dimensions that can be measured; volume can be determined with a suitable geometric formula | |
| 3. | irregular - not occurring at expected timessporadic - recurring in scattered and irregular or unpredictable instances; "a city subjected to sporadic bombing raids" | |
| 4. | irregular - used of the military; not belonging to or engaged in by regular army forces; "irregular troops"; "irregular warfare"regular - (used of the military) belonging to or engaged in by legitimate army forces; "the regular army" | |
| 5. | irregular - 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"abnormal - not normal; not typical or usual or regular or conforming to a norm; "abnormal powers of concentration"; "abnormal amounts of rain"; "abnormal circumstances"; "an abnormal interest in food" | |
| 6. | irregular - lacking continuity or regularity; "an irregular worker"; "employed on a temporary basis"part-time - involving less than the standard or customary time for an activity; "part-time employees"; "a part-time job" | |
| 7. | irregular - of a surface; not level or flat; "walking was difficult on the irregular cobblestoned surface"uneven - not even or uniform as e.g. in shape or texture; "an uneven color"; "uneven ground"; "uneven margins"; "wood with an uneven grain" | |
| 8. | irregular - used of independent armed resistance forces; "guerrilla warfare"; "partisan forces" | |
| 9. | irregular - independent in behavior or thought; "she led a somewhat irregular private life"; "maverick politicians"unconventional - not conforming to accepted rules or standards; "her unconventional dress and hair style" | |