401 entries under verb topic. ×

7
molder(stop, break, dull, end)
7
mortify(deteriorate, disintegrate, crumble, rot)
7
slump(noun, drop, cut, decline)
7
waste away(expression, phrasal verb, decline, dry)
7
worsen(break, drop, decline, reduce)
6
breakdown(noun, break, decline, ruin)
6
contract(drop, cut, decline, reduce)
6
curdle(dull, spoil, deteriorate, taint)
6
dilapidate(stop, break, end, pass)
6
lapse(noun, stop, drop, end)
6
mold(noun, foul, stain, deteriorate)
6
shrivel(drop, cut, decline, reduce)
5
break(decline, fail, lower, collapse)
5
break up(expression, phrasal verb, break, beat)
5
erode(decline, hurt, reduce, destroy)
5
go downhill(expression, idiom, stop, drop)
5
go to pot(expression, idiom, drop, decline)
5
go to seed(expression, idiom, decline, fail)
5
lessen(drop, cut, decline, reduce)
5
putresce(deteriorate, crumble, rot, weep)
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APASmart Define. (2016). decay thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/decay/thesaurus/synonyms
ChicagoSmart Define. 2016. "decay thesaurus" https://smartdefine.org/decay/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, decay thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/decay/thesaurus/synonyms>.
MLASmart Define. "decay thesaurus" 14 March 2016. Web. 25 September 2026. <https://smartdefine.org/decay/thesaurus/synonyms>