30 entries under deteriorated topic. ×

6
slumped(verb, descended)
5
deteriorated(verb, adjective, settled, aged, abandoned)
5
ebbed
5
relapsed(noun, verb, returned, regressed)
4
decayed(verb, adjective)
4
downgraded(verb, adjective)
4
waned
3
collapsed
3
regressed(verb, regressed)
3
atrophied(verb, adjective)
3
degenerated(verb, settled, drained, decreased)
3
faded(verb, reduced, settled, diminished, drained)
3
lapsed(noun, verb, adjective, abandoned)
3
retrogressed(verb, adjective)
3
slipped(verb, descended)
3
worsened
2
dilapidated(verb, adjective)
2
putrefied(verb, adjective)
2
sank(verb, descended)
2
slid(verb, descended)
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APASmart Define. (2015). declined thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/declined/thesaurus/synonyms
ChicagoSmart Define. 2015. "declined thesaurus" https://smartdefine.org/declined/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, declined thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/declined/thesaurus/synonyms>.
MLASmart Define. "declined thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/declined/thesaurus/synonyms>