Synonyms|120Antonyms|49|Broader|0Narrower|0Related|141

44 entries under obsolete topic. ×

9
old(adjective, last, past, other, outdated)
8
past(adjective, last, original, primitive, outdated)
6
bygone(adjective, last, original, past, primitive)
6
once(adjective, adverb, last, original, past)
2
early(last, original, past, primitive, venerable)
2
immemorial(last, original, past, primitive, venerable)
2
primeval(last, original, past, primitive, venerable)
2
primitive(last, original, past, venerable, outdated)
1
aboriginal(last, original, past, primitive, venerable)
1
age-old(last, original, past, primitive, venerable)
1
antediluvian(last, original, past, primitive, venerable)
1
antiquated(adjective, last, original, past, venerable)
1
antique(adjective, last, original, past, primitive)
1
archaic(last, original, past, venerable, outdated)
1
cast-off(last, original, past, primitive, venerable)
1
crumbling(last, original, past, traditional, venerable)
1
dated(last, original, past, venerable, outdated)
1
decayed(last, original, past, traditional, venerable)
1
done(last, original, past, traditional, venerable)
1
hackneyed(last, original, past, venerable, outdated)
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APASmart Define. (2015). onetime thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/onetime/thesaurus/synonyms
ChicagoSmart Define. 2015. "onetime thesaurus" https://smartdefine.org/onetime/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, onetime thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/onetime/thesaurus/synonyms>.
MLASmart Define. "onetime thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/onetime/thesaurus/synonyms>