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English definition of “irregularity”

irregularity

noun (RULE)    /ɪˌreɡ.jəˈlær.ə.ti/ US  /-ˈler.ə.t̬i/
[C or U] something that is not correct or acceptable: The inspectors found several irregularities in the business accounts. The irregularity of (= the lack of rules for) English spelling means that it is easy to make mistakes.Faults and mistakes
(Definition of irregularity noun (RULE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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