'Irregular' definitions:

Definition of 'irregular'

From: WordNet
adjective
Contrary to rule or accepted order or general practice; "irregular hiring practices" [ant: regular]
adjective
Not occurring at expected times [syn: irregular, unpredictable]
adjective
(used of the military) not belonging to or engaged in by regular army forces; "irregular troops"; "irregular warfare" [ant: regular]
adjective
(of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement [ant: regular]
adjective
Falling below the manufacturer's standard; "irregular jeans"
adjective
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, irregular]
adjective
Lacking continuity or regularity; "an irregular worker"; "employed on a temporary basis" [syn: irregular, temporary]
adjective
(of a surface or shape); not level or flat or symmetrical; "walking was difficult on the irregular cobblestoned surface"
adjective
Independent in behavior or thought; "she led a somewhat irregular private life"; "maverick politicians" [syn: irregular, maverick, unorthodox]
noun
A member of an irregular armed force that fights a stronger force by sabotage and harassment [syn: guerrilla, guerilla, irregular, insurgent]
noun
Merchandise that has imperfections; usually sold at a reduced price without the brand name [syn: irregular, second]

Definition of 'Irregular'

From: GCIDE
  • Irregular \Ir*reg"u*lar\, a. [Pref. ir- not + regular: cf. F. irr['e]gulier.] Not regular; not conforming to a law, method, or usage recognized as the general rule; not according to common form; not conformable to nature, to the rules of moral rectitude, or to established principles; not normal; unnatural; immethodical; unsymmetrical; erratic; no straight; not uniform; as, an irregular line; an irregular figure; an irregular verse; an irregular physician; an irregular proceeding; irregular motion; irregular conduct, etc. Cf. Regular. [1913 Webster]
  • Mazes intricate, Eccentric, intervolved, yet regular Then most when most irregular they seem. --Milton. [1913 Webster]
  • Leading the men of Herefordshire to fight Against the irregular and wild Glendower. --Shak. [1913 Webster]
  • A flowery meadow through which a clear stream murmured in many irregular meanders. --Jones.
  • Syn: Immethodical; unsystematic; abnormal; unnatural; anomalous; erratic; devious; crooked; eccentric; unsettled; uneven; variable; changeable; mutable; desultory; disorderly; wild; immoderate; intemperate; inordinate; vicious. [1913 Webster]

Definition of 'Irregular'

From: GCIDE
  • Irregular \Ir*reg"u*lar\, n. One who is not regular; especially, a soldier not in regular service. [1913 Webster]

Synonyms of 'irregular'

From: Moby Thesaurus