adj
irregular
ih-REHG-yuu-luh
adj
1
Not following a regular pattern, schedule, or set of rules.
"His heartbeat was irregular, so the doctor ordered more tests."
"The trains ran on an irregular schedule during the holidays."
2
In grammar, not following the standard patterns of conjugation or inflection.
""Go/went/gone" is an irregular verb in English."
How to Use Irregular
Learner’s notesIn plain EnglishUneven, unpredictable, or not conforming to the usual pattern or rule.
Common pairings
irregular verb
irregular heartbeat
irregular shape
Word Forms
more irregular comparative, irregulars plural, most irregular superlative
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His heartbeat was _____, so the doctor ordered more tests.
Etymology
From Old French irreguler, from Late Latin irrēgulāris, from in- ("not") plus regularis ("regular").