- 1not arranged in an even way; not having an even, smooth pattern or shape synonym uneven irregular teeth an irregular outline Oxford Collocations Dictionary verbsbe, become adverbhighly, very, rather, … See full entry
- 2not happening at times that are at an equal distance from each other; not happening regularly irregular meals an irregular heartbeat irregular attendance at school He visited his parents at irregular intervals. Oxford Collocations Dictionary verbsbe, become adverbhighly, very, rather, … See full entry
- 3not normal; not according to the usual rules synonym abnormal an irregular practice His behaviour is highly irregular. Oxford Collocations Dictionary verbsbe, seem adverbhighly, most, very, … See full entry
- 4 (grammar) not formed in the normal way an irregular verb
- 5(of a soldier, etc.) not part of a country’s official army opposite regular Word Originlate Middle English (in the sense ‘not conforming to rule (especially that of the Church)’): via Old French from medieval Latin irregularis, from in- ‘not’ + regularis (from regula ‘rule’).Extra examples The cells are slightly irregular in shape. some somewhat irregular business practices A combination of irregular meals and insufficient sleep was to blame. He visited his parents at irregular intervals. This stuff’s great for renovating uneven, irregular surfaces.
Check pronunciation: irregular
