involuntary.
Without intention; unintentional.
Meaning & usage
Without intention; unintentional.
Not voluntary or willing; contrary or opposed to explicit will or desire; unwilling.
He found himself the involuntary witness in the trial.
Where this word comes from
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- Middle English voluntarie English voluntary English involuntary From in- + voluntary, from Late Latin involontarius, from in + volontarius.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.