Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
verb
To cease to have happened; to undo itself.
Definition source: English Wiktionary via Wiktextract
Usage: intransitive
Synonyms: none provided
Antonyms: none provided
History
From un- + happen.
