50 entries under decline topic. ×

1
rotting(ruin, collapse, failing, deterioration)
1
ruination(ruin, collapse, failing, deterioration)
1
rust(ruin, collapse, failing, deterioration)
1
spoilage(noun, ruin, collapse, failing)
1
spoilation(ruin, collapse, failing, deterioration)
1
waning(noun, drop, fall, failure)
1
wasting away(expression, ruin, collapse, deterioration)
1
withering(ruin, collapse, failing, deterioration)
0
falling-off(noun, drop, fall, deterioration)
0
falloff(noun, drop, fall, deterioration)
<123>
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APASmart Define. (2015). decrepitude thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/decrepitude/thesaurus/synonyms
ChicagoSmart Define. 2015. "decrepitude thesaurus" https://smartdefine.org/decrepitude/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, decrepitude thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/decrepitude/thesaurus/synonyms>.
MLASmart Define. "decrepitude thesaurus" 23 December 2015. Web. 24 September 2026. <https://smartdefine.org/decrepitude/thesaurus/synonyms>