irregular meaning and definition

IRREGULAR noun

Definition of irregular (noun)

1. a member of an irregular armed force that fights a stronger force by sabotage and harassment
   • synonyms: guerilla, guerrilla, insurgent
2. merchandise that has imperfections; usually sold at a reduced price without the brand name
   • synonyms: second

IRREGULAR adjective

Definition of irregular (adjective)

1. contrary to rule or accepted order or general practice
   • "irregular hiring practices"
   • antonym: regular
2. not occurring at expected times
   • synonyms: unpredictable
3. (used of the military) not belonging to or engaged in by regular army forces
   • "irregular troops"; "irregular warfare"
   • antonym: regular
4. (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
   • antonym: regular
5. falling below the manufacturer's standard
   • "irregular jeans"
6. deviating from normal expectations; somewhat odd, strange, or abnormal
   • "these days large families are atypical"; "atypical clinical findings"; "atypical pneumonia"; "highly irregular behavior"
   • synonyms: atypical
7. lacking continuity or regularity
   • "an irregular worker"; "employed on a temporary basis"
   • synonyms: temporary
8. (of a surface or shape); not level or flat or symmetrical
   • "walking was difficult on the irregular cobblestoned surface"
9. independent in behavior or thought
   • "she led a somewhat irregular private life"; "maverick politicians"
   • synonyms: maverick, unorthodox