Synonyms|396Antonyms|89|Broader|6Narrower|5Related|200
1
once for all(expression, idiom)
1
once upon a time(expression, adjective, idiom, adverb, late)
1
one by one(expression, idiom)
1
one fine day(expression, idiom, time)
1
one time before(expression, adjective, idiom, adverb, past)
1
one time previously(expression, adjective, idiom, adverb, past)
1
only once
1
only one time(expression, adjective, idiom, adverb, past)
1
original(last, past, traditional, primitive, venerable)
1
other(last, previous)
1
out-of-date(last, original, past, other, obsolete)
1
outdated(adjective, last, original, previous, venerable)
1
outmoded(last, original, past, other, outdated)
1
over(adjective, late, old, past, previous)
1
particularly
1
per se
1
preceding(adjective, late, old, past, previous)
1
prehistoric
1
primordial(last, original, past, primitive, venerable)
1
pristine(last, original, past, primitive, venerable)
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APASmart Define. (2016). once thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/once/thesaurus/synonyms
ChicagoSmart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, once thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/once/thesaurus/synonyms>.
MLASmart Define. "once thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/once/thesaurus/synonyms>