94 entries under decline topic. ×

16
deficiency(noun, trouble, check, disorder)
14
failure(noun, drop, ruin, fall)
9
decay(noun, drop, disorder, ruin)
9
fading(noun, verb, adjective, collapse)
8
dying(noun, verb, adjective, collapse)
7
deterioration(noun, drop, ruin, defeat)
7
downfall(noun, drop, ruin, defeat)
7
inadequacy(noun, trouble, ruin, defeat)
6
abortion(noun, ruin, defeat, neglect)
6
degeneration(noun, drop, fall, collapse)
5
dereliction(noun, wrong, weakness, burden)
5
miscarriage(noun, ruin, defeat, neglect)
5
neglect(noun, slip, weakness, failure)
5
omission(noun, wrong, slip, weakness)
4
crumbling(adjective, ruin, collapse, deterioration)
4
decadence(noun, ruin, collapse, deterioration)
4
defeat(noun, ruin, neglect, collapse)
4
dwindling(noun, adjective, drop, fall)
4
waning(noun, verb, adjective, drop)
4
wasting(noun, ruin, collapse, deterioration)
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APASmart Define. (2015). failing thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/failing/thesaurus/synonyms
ChicagoSmart Define. 2015. "failing thesaurus" https://smartdefine.org/failing/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, failing thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/failing/thesaurus/synonyms>.
MLASmart Define. "failing thesaurus" 23 December 2015. Web. 23 September 2026. <https://smartdefine.org/failing/thesaurus/synonyms>