Synonyms|1.4kAntonyms|486|Broader|22Narrower|81Related|879

144 entries under deteriorate topic. ×

3
impoverish(verb, cut, decline, reduce, fail)
3
sag(verb, drop, decline, fall, fail)
3
sap(verb, dull, decline, reduce, fail)
3
thin out(verb, expression, close, decline, reduce)
3
wear away(verb, expression, drop, cut, decline)
3
wilt(verb, decline, fall, fail, halt)
2
be impaired(verb, decline, weaken, degenerate)
2
become contaminated(expression, decline, weaken, degenerate)
2
blight(verb, decline, damage, harm, spoil)
2
break up(expression, decline, fail, weaken, degenerate)
2
curdle(verb, decline, weaken, degenerate)
2
decompose(verb, decline, fail, lower, weaken)
2
defile(verb, decline, weaken, degenerate)
2
devitalize(verb, dull, quiet, decline, reduce)
2
discolor(verb, decline, weaken, degenerate)
2
dry-rot(verb, decline, weaken, degenerate)
2
enervate(verb, decline, reduce, fail, halt)
2
get worse(expression, decline, weaken, degenerate)
2
go bad(expression, decline, weaken, degenerate)
2
go to seed(expression, idiom, decline, fail, weaken)
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ChicagoSmart Define. 2016. "lessen thesaurus" https://smartdefine.org/lessen/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, lessen thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lessen/thesaurus/synonyms>.
MLASmart Define. "lessen thesaurus" 31 January 2016. Web. 27 September 2026. <https://smartdefine.org/lessen/thesaurus/synonyms>