19
traditional(adjective, feature, state, characteristic, quality)
18
primitive(adjective, feature, characteristic, detail, last)
18
venerable(adjective, characteristic, new, gray, age)
16
stale(adjective, beat, hard, last, dead)
16
decrepit(adjective, feature, characteristic, detail, shabby)
14
olden(adjective, new, odd, late, past)
14
hoary(adjective, informal, new, age, venerable)
13
quondam(adjective, last, late, past, previous)
12
experienced(adjective, characteristic, ability, smart, familiar)
12
matured(adjective, familiar, sophisticated, knowledgeable, behaviour)
12
mature(adjective, familiar, sophisticated, knowledgeable, qualified)
12
primeval(adjective, last, original, past, venerable)
12
seasoned(adjective, characteristic, ability, smart, familiar)
12
senile(adjective, physical, feeble, age, enervated)
12
timeworn(adjective, beat, hard, new, dead)
11
erstwhile(adjective, last, late, past, previous)
11
bygone(adjective, new, last, dead, odd)
11
grey
10
previous(adjective, last, late, past, other)
10
sometime(adjective, adverb, last, late, past)
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APASmart Define. (2016). old thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/old/thesaurus/synonyms
ChicagoSmart Define. 2016. "old thesaurus" https://smartdefine.org/old/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, old thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/old/thesaurus/synonyms>.
MLASmart Define. "old thesaurus" 29 February 2016. Web. 22 September 2026. <https://smartdefine.org/old/thesaurus/synonyms>