101 entries under old topic. ×

52
extinct(adjective, feature, state, split, quit)
30
dull(adjective, hard, weak, simple, flat)
24
flat(adjective, adverb, dull, quiet, hard)
17
tired(adjective, dull, beat, hard, weak)
16
stale(adjective, dull, quiet, hard, weak)
15
insipid(adjective, dull, hard, weak, flat)
15
dry(adjective, dull, hard, simple, flat)
14
obsolete(adjective, odd, over, working)
12
out(adjective, hard, cold, odd, senseless)
12
stagnant(adjective, calm, dull, quiet, hard)
9
outmoded(adjective, cold, odd, primitive)
8
antiquated(adjective, hard, odd, sour)
8
bygone(adjective, odd, out, past)
8
commonplace(adjective, dull, hard, simple, flat)
8
dated(adjective, odd, out, past)
7
tasteless(adjective, dull, hard, weak, cold)
6
drab(adjective, dull, hard, weak, simple)
6
passe(adjective, hard, informal, odd, out)
6
past(adjective, hard, split, quit, odd)
6
weak(adjective, dull, beat, hard, boring)
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APASmart Define. (2016). dead thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dead/thesaurus/synonyms
ChicagoSmart Define. 2016. "dead thesaurus" https://smartdefine.org/dead/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, dead thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dead/thesaurus/synonyms>.
MLASmart Define. "dead thesaurus" 18 March 2016. Web. 22 September 2026. <https://smartdefine.org/dead/thesaurus/synonyms>