8
musty(adjective, dull, set, flat, silly)
8
rotten(adjective, deterioration, stale, musty, uncleanness)
7
moldy(adjective, deterioration, stale, musty, uncleanness)
7
putrid(adjective, stale, rotten, musty, uncleanness)
7
stale(adjective, dull, flat, silly, commonplace)
6
blighted(verb, deterioration)
6
decayed(verb, adjective, deterioration, stale, uncleanness)
6
fusty(adjective, uncleanness)
6
rancid(adjective, uncleanness)
5
fetid(adjective, stale, musty, aged, squalid)
5
mouldy
5
rank(adjective, stale, musty, stuffy, moldy)
4
bad(adjective, uncleanness)
4
crumbling
4
flyblown
4
foul
4
maggoty
4
moth-eaten(adjective, dull, set, flat, silly)
4
rusty(deterioration, uncleanness)
4
trite(adjective, dull, flat, silly, commonplace)
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APASmart Define. (2015). mildewed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/mildewed/thesaurus/synonyms
ChicagoSmart Define. 2015. "mildewed thesaurus" https://smartdefine.org/mildewed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, mildewed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/mildewed/thesaurus/synonyms>.
MLASmart Define. "mildewed thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/mildewed/thesaurus/synonyms>