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Added 3 October 2026

irregular

/ɪˈɹɛɡ.jʊ.lə/ adjective

In Latin: inconditus, irrēgulāris, ēnormis Wiktionary

adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about irregular at Wordnik → Where our words come from →

Nonstandard; not conforming to rules or expectations.
Of a surface, rough.
Without symmetry, regularity, or uniformity.

noun

A soldier who is not a member of an official military force and who may not use regular army tactics.
One who does not regularly attend a venue.

Origin

From Middle English irreguler, from Old French irreguler, from Medieval Latin or Late Latin irrēgulāris, from in- + regularis, equivalent to ir- + regular.

From Wiktionary, via Kaikki.org (CC BY-SA)

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