110 entries under lower topic. ×

7
corrode(verb, decline, hurt, reduce, destroy)
7
corrupt(verb, decline, hurt, reduce, destroy)
7
languish(verb, drop, decline, fall, fail)
7
slump(noun, verb, drop, cut, decline)
7
worsen(verb, break, drop, decline, reduce)
6
contract(verb, drop, cut, decline, reduce)
6
lapse(noun, verb, stop, drop, end)
6
shrivel(verb, drop, cut, decline, reduce)
5
break(verb, decline, fail, collapse)
5
erode(verb, decline, hurt, reduce, destroy)
5
go downhill(verb, expression, idiom, stop, drop)
5
go to pot(verb, expression, idiom, drop, decline)
5
lessen(verb, drop, cut, decline, reduce)
4
depreciate(verb, drop, cut, decline, reduce)
4
flag(verb, drop, decline, fall, fail)
4
peter out(verb, expression, stop, drop, end)
4
retrogress(verb, decline, reduce, fail, diminish)
4
shrink(verb, drop, cut, decline, reduce)
4
wear away(verb, expression, phrasal verb, stop, drop)
3
debilitate(verb, decline, fail, blow)
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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>