50 entries under obsolete topic. ×

1
hackneyed(adjective, hard, last, original, old)
1
immemorial(last, original, past, traditional, venerable)
1
late(last, original, past, venerable, outdated)
1
of old(expression, last, original, venerable, outdated)
1
of yore(expression, last, original, venerable, outdated)
1
old-fashioned(adjective, last, original, past, venerable)
1
old-time(last, original, past, venerable, outdated)
1
olden(adjective, original, old, past, venerable)
1
oldfangled(last, original, past, venerable, outdated)
1
once(last, original, past, traditional, venerable)
1
onetime(last, original, past, traditional, venerable)
1
original(last, past, traditional, venerable, outdated)
1
out-of-date(adjective, hard, last, original, remote)
1
outdated(adjective, last, original, previous, venerable)
1
outmoded(last, original, past, other, outdated)
1
passé(hard, last, original, remote, old)
1
past(adjective, hard, last, original, old)
1
primeval(last, original, past, venerable, outdated)
1
primitive(last, original, past, venerable, outdated)
1
primordial(last, original, past, venerable, outdated)
11 years ago|10k views|share |citing 
APASmart Define. (2015). decayed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/decayed/thesaurus/synonyms
ChicagoSmart Define. 2015. "decayed thesaurus" https://smartdefine.org/decayed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, decayed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/decayed/thesaurus/synonyms>.
MLASmart Define. "decayed thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/decayed/thesaurus/synonyms>