Main entry: irregular
Definition: contrary to rule or accepted order or general practice
Usage: irregular hiring practices
Antonyms: regular
Definition: in accordance with fixed order or procedure or principle
Antonyms: proper
Definition: marked by suitability or rightness or appropriateness
Antonyms: conventional
Definition: following accepted customs and proprieties
Antonyms: conventional
Definition: unimaginative and conformist
Antonyms: weak
Definition: wanting in physical strength
Antonyms: straight
Definition: having no deviations
Definition: characterized by honesty and fairness
Antonyms: lawful
Definition: conformable to or allowed by law
Antonyms: symmetric, symmetrical
Definition: having similarity in size, shape, and relative position of corresponding parts
Main entry: irregular
Definition: (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
Antonyms: regular
Definition: (of solids) having clear dimensions that can be measured; volume can be determined with a suitable geometric formula
Main entry: irregular
Definition: (used of the military) not belonging to or engaged in by regular army forces
Usage: irregular troops; irregular warfare
Antonyms: regular
Definition: (used of the military) belonging to or engaged in by legitimate army forces
Main entry: irregular
Definition: falling below the manufacturer's standard
Usage: irregular jeans
Antonyms: perfect
Definition: being complete of its kind and without defect or blemish
Main entry: atypical, irregular
Definition: deviating from normal expectations; somewhat odd, strange, or abnormal
Usage: these days large families are atypical; atypical clinical findings; atypical pneumonia; highly irregular behavior
Antonyms: natural
Definition: in accordance with nature; relating to or concerning nature
Antonyms: normal
Definition: conforming with or constituting a norm or standard or level or type or social norm; not abnormal
Antonyms: normal
Definition: being approximately average or within certain limits in e.g. intelligence and development
Main entry: irregular
Definition: (of a surface or shape); not level or flat or symmetrical
Usage: walking was difficult on the irregular cobblestoned surface
Antonyms: even
Definition: being level or straight or regular and without variation as e.g. in shape or texture; or being in the same plane or at the same height as something else (i.e. even with)
Main entry: unpredictable, irregular
Definition: not occurring at expected times
Antonyms: continual
Definition: occurring without interruption; chiefly restricted to what recurs regularly or frequently in a prolonged and closely spaced series
Main entry: unorthodox, maverick, irregular
Definition: independent in behavior or thought
Usage: she led a somewhat irregular private life; maverick politicians
Antonyms: conventional
Definition: following accepted customs and proprieties
Antonyms: conventional
Definition: unimaginative and conformist
Main entry: temporary, irregular
Definition: lacking continuity or regularity
Usage: an irregular worker; employed on a temporary basis
Antonyms: full-time
Definition: for the entire time appropriate to an activity