4
decadent(adjective, corrupt, regressive)
4
decrepit(adjective, mean, poor, bare, better)
4
mouldering(verb, adjective, deteriorating)
4
degeneration(noun, drop, decline, collapse, deterioration)
4
mouldy
3
degenerating(verb, adjective, deteriorating, disintegrating)
3
deteriorating(verb, adjective, deteriorating)
3
putrid(adjective, corrupt, foul, rotten, decayed)
3
decomposed
3
spoiling(noun, verb, adjective, drop, decline)
3
tatty(adjective, better, shabby)
3
waning(verb, deteriorating)
3
wilting(verb, deteriorating)
3
worsening(noun, verb, adjective, drop, decline)
2
declension(noun, drop, decline, collapse, deterioration)
2
disappearing
2
fetid
2
lessening(noun, drop, decline, decay, degradation)
2
mortifying(verb, disintegrating)
2
run-down(adjective, mean, poor, shabby, dingy)
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APASmart Define. (2015). decaying thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/decaying/thesaurus/synonyms
ChicagoSmart Define. 2015. "decaying thesaurus" https://smartdefine.org/decaying/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, decaying thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/decaying/thesaurus/synonyms>.
MLASmart Define. "decaying thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/decaying/thesaurus/synonyms>