25
rotten(adjective, strong, offensive, sweet, rank)
24
stale(adjective, dull, set, strong, hard)
16
putrid(adjective, strong, offensive, sweet, rank)
15
fusty(adjective, hard, warm, heavy, rank)
13
moldy(adjective, strong, offensive, sweet, heavy)
11
rank(noun, adjective, hard, foul, disagreeable)
11
rancid(adjective, bad, sharp, unpleasant, rank)
11
ancient(adjective, odd, old, stale, primitive)
10
antediluvian(adjective, stale, unfashionable, aged, stuffy)
10
mouldy
9
fetid(adjective, strong, hard, warm, offensive)
9
worn(adjective, dull, set, flat, silly)
8
frowsty(adjective, stale, rotten, stinking, smelly)
8
threadbare(adjective, dull, set, hard, flat)
8
antiquated(adjective, hard, odd, old, sour)
8
crumbling(adjective, aged, stuffy, moth-eaten)
8
hackneyed(adjective, dull, set, hard, flat)
8
malodorous(adjective, strong, hard, offensive, sweet)
8
old-fashioned(adjective, stale, unfashionable, obsolete, antiquated)
8
spoiled(adjective, hard, old, sour, stale)
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APASmart Define. (2015). musty thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/musty/thesaurus/synonyms
ChicagoSmart Define. 2015. "musty thesaurus" https://smartdefine.org/musty/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, musty thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/musty/thesaurus/synonyms>.
MLASmart Define. "musty thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/musty/thesaurus/synonyms>