62 entries under deteriorating topic. ×

5
relapsing(verb, adjective, regressive, regressing)
5
worsening(verb, adjective, backward, weakening, lessening)
4
degenerating(verb, adjective)
4
diminishing(noun, adjective, cut, decline, reduction)
4
disappearing(adjective, lessening, dying, fading)
4
dwindling(noun, adjective, cut, decline, reduction)
4
lessening(noun, adjective, cut, decline, reduction)
4
lowering(verb, adjective, shrinking, falling, decreasing)
4
regressing(verb, regressing)
4
subsiding(verb, adjective, lessening, shrinking, lowering)
4
weak(adjective, mean, bad, disease, delicate)
3
flagging(adjective, weakening, lessening, fading)
3
lapsing
2
abating(verb, adjective, weakening, lessening, shrinking)
2
atrophying
2
crumbling(noun, stale, fading, dropping)
2
downgrading
2
weakening(adjective, lessening, shrinking, worsening, fading)
1
dilapidating
1
feeble(adjective, mean, bad, weak, delicate)
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APASmart Define. (2015). declining thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/declining/thesaurus/synonyms
ChicagoSmart Define. 2015. "declining thesaurus" https://smartdefine.org/declining/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, declining thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/declining/thesaurus/synonyms>.
MLASmart Define. "declining thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/declining/thesaurus/synonyms>