86 entries under deteriorate topic. ×

3
slip(verb, reduce, lessen, lapse)
3
slip back(verb, expression, fall, fail, degenerate)
2
disimprove(verb, decline, reduce, fail, lower)
2
downgrade
2
lessen(verb, drop, close, decline, reduce)
2
sicken(fall, fail, degenerate, revert)
2
slide(verb, decline, weaken, degenerate)
2
weaken(verb, decline, fail, lower, lapse)
2
wilt
2
wither
1
abate(verb, drop, close, decline, reduce)
1
adulterate(decline, weaken, degenerate, degrade)
1
alloy(decline, weaken, degenerate, degrade)
1
atrophy
1
be overcome(fall, fail, degenerate, revert)
1
be overtaken(fall, fail, degenerate, revert)
1
be worse for wear(decline, weaken, degenerate, degrade)
1
break(decline, weaken, degenerate, degrade)
1
corrode(verb, decline, reduce, fail, lower)
1
corrupt(verb, decline, reduce, fail, lower)
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APASmart Define. (2016). retrogress thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/retrogress/thesaurus/synonyms
ChicagoSmart Define. 2016. "retrogress thesaurus" https://smartdefine.org/retrogress/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, retrogress thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/retrogress/thesaurus/synonyms>.
MLASmart Define. "retrogress thesaurus" 14 March 2016. Web. 29 September 2026. <https://smartdefine.org/retrogress/thesaurus/synonyms>