4
decayed(verb, deterioration, uncleanness)
4
fecal(adjective, corrupt, disgusting, sour, stale)
4
fetid(adjective, strong, offensive, sweet, rank)
4
frowzy(adjective, plain, disagreeable, sour, stale)
4
mildewy(adjective, stale, rotten, musty, aged)
4
moldering
4
moth-eaten(deterioration, uncleanness)
4
odorous(adjective, nasty, wretched, filthy, muddy)
4
rusty(deterioration, uncleanness)
4
stuffy(adjective, tight, stale, rotten, musty)
4
tainted(verb, deterioration, uncleanness)
3
archaic(adjective, plain, dead, odd, out)
3
bygone(adjective, plain, dead, odd, out)
3
dated(adjective, plain, dead, odd, out)
3
dirty(adjective, musty)
3
dowdy(adjective, plain, odd, old, primitive)
3
effete(deterioration, uncleanness)
3
foul(adjective, strong, offensive, sweet, rank)
3
frowsty(adjective, stale, rotten, stinking, smelly)
3
funky(adjective, musty)
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APASmart Define. (2015). moldy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/moldy/thesaurus/synonyms
ChicagoSmart Define. 2015. "moldy thesaurus" https://smartdefine.org/moldy/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, moldy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/moldy/thesaurus/synonyms>.
MLASmart Define. "moldy thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/moldy/thesaurus/synonyms>