irregularir‧reg‧u‧lar1 /ɪˈreɡjələ $ -ər/ ●○○ adjective 🔊 🔊 1Chaving a shape, surface, pattern etc that is not even, smooth, or balanced syn uneven opp regular 🔊 a jagged, irregular coastline 🔊 It has a highly irregular shape, covered in bumps and indentations.2REGULARnot happening at times that are an equaldistance from each other opp regular 🔊 He’s receiving medication for an irregular heartbeat. 🔊 Beamish only returned to Britain at irregular intervals.3REGULARnot happening or done at the normal time for doing something opp regular 🔊 Funeral directors often work long, irregular hours.4formalOBEY not obeying the usually acceptedlegal or moral rules 🔊 It would be highly irregular (=extremely irregular) for a minister to accept payments of this kind.5 →irregular verb/plural etc6American EnglishMI a word meaning constipated (=unable to easily pass food waste from your body), used in order to be polite —irregularly adverb —irregularity /ɪˌreɡjəˈlærəti/ noun [countable, uncountable] 🔊 The club were found guilty of financial irregularities.
irregularirregular2 noun [countable] 🔊 🔊 PMAa soldier who is not an official member of a country’s army
Examples from the Corpus
irregular• The forces the government has are half-trained new soldiers and irregulars, including ex-rebels and ex-bandits.• They were and they must remain irregulars, to be disowned at need.From Longman Business Dictionaryirregularir‧reg‧u‧lar /ɪˈregjələ-ər/ adjectivenot obeying the usually accepted legal or moral rulesThere were some warning signals that something irregular was going on.highly irregular trading activities —irregularity noun [countable, uncountable]A customer’s call alerted a bank clerk to accounting irregularities.In the legal profession, the smallest hint of irregularity cannot pass unnoticed.