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Thesaurus

once

adjective

Synonyms and Antonyms of once

  1. having been such at some previous time <the once child star is now a lawyer in the entertainment industry> Synonyms erstwhile, late, old, former, onetime, other, past, quondam, sometime, whilomRelated Words bygone, dead, defunct, departed, expired, extinct, gone, long-ago, vanishedNear Antonyms contemporary, current, extant, ongoing, present, present-day; coming, future, prospective, unborn




once

adverb

Synonyms and Antonyms of once

  1. at an earlier or previous time <I once knew the quotation, but time has taken its toll on my brain cells> Synonyms erstwhile, formerly, onetimeNear Antonyms lately, recently; currently, now, presently




once

conjunction

Synonyms and Antonyms of once

  1. just at the moment that <you should have stopped wrestling once you knew someone was getting hurt, not five minutes later> Synonyms as soon as, immediately [chiefly British], instantly, whenNear Antonyms after, directly [chiefly British], since




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expressing little or no emotion

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