irregular - definition in the Learner's Dictionary - Cambridge Dictionaries Online

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English definition of “irregular”

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irregular

adjective
 
 
/ɪˈreɡjələr/
TIME B2 Irregular actions or events happen with a different amount of time between each one: an irregular heartbeat They met at irregular intervals.Frequency and regularity - general words
SHAPE B2 not smooth or straight, or having parts that are different sizes: an irregular coastlineRough, irregular and uneven
GRAMMAR B1 not following the general rules in grammar: irregular verbs/pluralsVerb forms, tenses and types of verbs
BEHAVIOUR UK formal slightly illegal, or not done in the usual and acceptable way: He led a very irregular life.Wrong
irregularity
 
 
/ɪˌreɡjəˈlærəti/ noun [C, U]
irregularly adverb
(Definition of irregular from the Cambridge Learners Dictionary © Cambridge University Press)
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