mistakenly.
Wrongly; erroneously.
Meaning & usage
Wrongly; erroneously.
I mistakenly assumed that the shop was still there.
By accident; by mistake; in error (without intention to do so).
Today I mistakenly took your packed lunch to work.
Where this word comes from
Etymology tree English mistaken Middle English -ly English -ly English mistakenly From mistaken + -ly.
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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.