325 entries under decline topic. ×

16
waste(noun, verb, break, drop, cut)
15
putrefaction(noun, collapse, condition, down)
14
blight(noun, verb, hurt, ruin)
14
dilapidation(noun, drop, disorder, ruin)
13
sink(verb, stop, break, drop, end)
13
dissolution(noun, drop, disorder, fall)
13
dwindle(verb, stop, drop, end, cut)
13
failure(noun, drop, ruin, fall)
13
weaken(verb, stop, drop, end, cut)
12
decadence(noun, drop, return, harm)
12
fall(noun, verb, stop, drop, end)
11
break down(verb, expression, phrasal verb, stop, break)
11
downfall(noun, drop, ruin, defeat)
11
rust(noun, verb, hurt, reduce)
9
die(verb, stop, fail, crash)
9
diminish(verb, stop, drop, end, cut)
9
failing(noun, drop, disorder, ruin)
9
perish(verb, beat, crush, blow)
8
corruption(noun, fall, wrong, evil)
8
disrepair(noun, state, drop, collapse)
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APASmart Define. (2016). decay thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/decay/thesaurus/synonyms
ChicagoSmart Define. 2016. "decay thesaurus" https://smartdefine.org/decay/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, decay thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/decay/thesaurus/synonyms>.
MLASmart Define. "decay thesaurus" 14 March 2016. Web. 24 September 2026. <https://smartdefine.org/decay/thesaurus/synonyms>