40
decline(noun, verb, stop, break, drop)
34
degenerate(verb, stop, drop, end, cut)
32
decay(noun, verb, stop, drop, end)
24
worsen(verb, drop, decline, reduce, destroy)
23
weaken(verb, stop, break, drop, end)
22
sink(verb, stop, drop, end, cut)
18
fade(verb, stop, break, drop, end)
17
fail(verb, stop, break, drop, end)
15
diminish(verb, stop, drop, end, cut)
14
go downhill(verb, expression, idiom, stop, drop)
14
languish(verb, drop, dull, get, strong)
14
lapse(verb, stop, drop, end, decline)
14
regress(noun, verb, decline, reduce, return)
13
wither(verb, stop, break, drop, end)
12
spoil(verb, decline, hurt, ruin, damage)
12
wane(noun, verb, stop, drop, end)
12
rot(noun, verb, stop, break, drop)
12
impair(verb, cut, decline, hurt, reduce)
11
ebb(verb, stop, break, drop, end)
11
lessen(verb, drop, cut, decline, reduce)
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APASmart Define. (2016). deteriorate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/deteriorate/thesaurus/synonyms
ChicagoSmart Define. 2016. "deteriorate thesaurus" https://smartdefine.org/deteriorate/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, deteriorate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/deteriorate/thesaurus/synonyms>.
MLASmart Define. "deteriorate thesaurus" 22 March 2016. Web. 20 September 2026. <https://smartdefine.org/deteriorate/thesaurus/synonyms>