Synonyms|396Antonyms|89|Broader|6Narrower|5Related|200
1
cast-off(adjective, last, original, primitive, venerable)
1
crumbling(last, original, past, traditional, venerable)
1
dated(last, original, past, venerable, outdated)
1
dead(adjective, previous, former, deceased)
1
decayed(last, original, past, traditional, venerable)
1
deceased(adjective, previous, former)
1
done(last, original, past, traditional, venerable)
1
eons ago(expression, adverb, earlier, then, before)
1
ere
1
ex-(adjective, late, old, past, previous)
1
fore
1
foregoing(adjective, late, old, past, previous)
1
gone-by(adjective, late, old, past, previous)
1
good old days(expression, idiom, late, old, past)
1
hackneyed(last, original, past, venerable, outdated)
1
hereupon
1
hornpipe
1
if
1
if ever
1
in days past
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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>