76 entries under verb topic. ×

11
declining(adjective, backward, weakening, lessening)
8
worsening(adjective, backward, weakening, lessening)
6
fading(adjective, weakening, lessening, worsening)
6
decaying
6
degenerating
5
withering
4
failing(adjective, weakening, lessening, worsening)
4
sinking(lessening, dropping, dwindling)
4
waning(adjective, weakening, lessening, worsening)
3
aging(adjective, aging)
3
regressing
3
relapsing
3
reverting
3
sliding
3
slipping
3
subsiding
2
debasing
2
dilapidating
2
ebbing
2
impairing
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APASmart Define. (2015). deteriorating thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/deteriorating/thesaurus/synonyms
ChicagoSmart Define. 2015. "deteriorating thesaurus" https://smartdefine.org/deteriorating/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, deteriorating thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/deteriorating/thesaurus/synonyms>.
MLASmart Define. "deteriorating thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/deteriorating/thesaurus/synonyms>