145 entries under deteriorate topic. ×

2
backslide(verb, drop, reduce, fall, fail)
2
debase(verb, decline, hurt, ruin, fail)
2
descend(verb, break, decline, reduce, fail)
2
discolor(verb, hurt, harm, spoil, dirty)
2
disimprove(verb, break, drop, decline, reduce)
2
fade away(verb, expression, stop, break, drop)
2
fall away(verb, expression, phrasal verb, drop, decrease)
2
go to pieces(verb, expression, idiom, beat, decline)
2
impair(verb, decline, ruin, destroy, fail)
2
let up(verb, expression, stop, drop, end)
2
lower(verb, drop, cut, decline, reduce)
2
melt(verb, decrease, lessen, retreat, exhaust)
2
reduce(verb, drop, quiet, cut, decline)
2
retire(verb, diminish, decrease, weaken, lessen)
2
retrograde(verb, stop, drop, end, decline)
2
sag(noun, verb, drop, decline, fall)
2
settle(verb, drop, cut, decline, reduce)
2
subside(verb, stop, drop, end, cut)
1
aggravate(verb, diminish, irritate, gather, degenerate)
1
alloy(decline, weaken, degenerate, worsen)
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APASmart Define. (2016). decay thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/decay/thesaurus/synonyms
ChicagoSmart Define. 2016. "decay thesaurus" https://smartdefine.org/decay/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, decay thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/decay/thesaurus/synonyms>.
MLASmart Define. "decay thesaurus" 14 March 2016. Web. 26 September 2026. <https://smartdefine.org/decay/thesaurus/synonyms>