3
withering(verb, deteriorating)
2
crashing
2
decaying(verb, adjective, deteriorating)
2
down(adjective, lower, inferior, declining, below)
2
drop
2
dwindling(adjective, declining, shrinking, fading, lowering)
2
failing(weakening, fading, wearying, flagging)
2
fall
2
flopping
2
languishing(weakening, fading, wearying, flagging)
2
lapsing(verb, deteriorating)
2
lowering(verb, adjective, declining, shrinking, falling)
2
regressing(verb, deteriorating)
2
relapsing(verb, deteriorating)
2
settling(verb, descending)
2
wasting(adjective, declining, shrinking, lowering, falling)
2
wilting(verb, weakening, fading, deteriorating, wearying)
1
abating(adjective, declining, shrinking, fading, lowering)
1
aging
1
atrophying(verb, deteriorating)
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APASmart Define. (2015). slumping thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/slumping/thesaurus/synonyms
ChicagoSmart Define. 2015. "slumping thesaurus" https://smartdefine.org/slumping/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, slumping thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/slumping/thesaurus/synonyms>.
MLASmart Define. "slumping thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/slumping/thesaurus/synonyms>