81 entries under outdated topic. ×

16
stale(adjective, beat, hard, last, dead)
14
olden(adjective, new, odd, late, past)
13
quondam(adjective, last, late, past, previous)
12
primeval(adjective, last, original, past, venerable)
11
erstwhile(adjective, last, late, past, previous)
11
bygone(adjective, new, last, dead, odd)
10
sometime(adjective, adverb, last, late, past)
10
primordial(adjective, simple, last, original, past)
9
hackneyed(adjective, beat, hard, informal, last)
9
old-time(adjective, dull, new, last, odd)
8
late(adjective, adverb, last, dead, past)
8
age-old(adjective, new, old, gray, traditional)
8
early(adjective, last, original, late, past)
8
once(adjective, adverb, last, late, past)
8
unoriginal(adjective, hard, last, tired, remote)
7
obsolescent(adjective, odd, primitive, unfashionable)
7
onetime(adjective, last, past, other)
6
worn-out(adjective, hard, common, last, feeble)
5
original(adjective, last, past, primitive, other)
5
outworn(adjective, dead, odd, primitive, unfashionable)
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APASmart Define. (2016). old thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/old/thesaurus/synonyms
ChicagoSmart Define. 2016. "old thesaurus" https://smartdefine.org/old/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, old thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/old/thesaurus/synonyms>.
MLASmart Define. "old thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/old/thesaurus/synonyms>