16
decrease(noun, verb, drop, cut, decline)
16
disintegration(noun, drop, decline, disorder, confusion)
16
waste(noun, verb, break, drop, cut)
15
putrefaction(noun, decline, collapse, condition, down)
14
blight(noun, verb, decline, hurt, ruin)
14
dilapidation(noun, drop, decline, disorder, ruin)
13
sink(verb, stop, break, drop, end)
13
dissolution(noun, drop, decline, disorder, fall)
13
dwindle(verb, stop, drop, end, cut)
13
failure(noun, drop, decline, ruin, fall)
13
weaken(verb, stop, drop, end, cut)
12
decadence(noun, drop, decline, return, harm)
12
destruction(noun, disorder, ruin, confusion, collapse)
12
fall(noun, verb, stop, drop, end)
12
go bad(verb, expression, idiom, stop, dull)
11
break down(verb, expression, phrasal verb, stop, break)
11
downfall(noun, drop, decline, ruin, defeat)
11
rust(noun, verb, decline, hurt, reduce)
11
turn(verb, break, hurt, harm, spoil)
10
go off(verb, expression, phrasal verb, spoil, deterioration)
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APASmart Define. (2016). decay thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/decay/thesaurus/synonyms
ChicagoSmart Define. 2016. "decay thesaurus" https://smartdefine.org/decay/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, decay thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/decay/thesaurus/synonyms>.
MLASmart Define. "decay thesaurus" 14 March 2016. Web. 21 September 2026. <https://smartdefine.org/decay/thesaurus/synonyms>