64 entries under adjective topic. ×

11
declining(verb, backward, weakening, lessening)
8
worsening(verb, backward, weakening, lessening)
6
fading(verb, weakening, lessening, worsening)
6
decaying
6
degenerating
5
withering
4
failing(verb, weakening, lessening, worsening)
4
retrograde
4
waning(verb, weakening, lessening, worsening)
3
aging(verb, aging)
3
crumbling
3
relapsing
3
retrogressive
3
reverting
2
aggravating
2
decadent
2
decreasing(lessening, declining, dropping, dwindling)
2
degrading
2
diminishing(lessening, declining, dropping, dwindling)
2
dwindling(weakening, lessening, declining, worsening)
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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>