85 entries under weaken topic. ×

1
regress(decline, degenerate, deteriorate, decay)
1
retrogress(decline, degenerate, deteriorate, decay)
1
skid(decline, degenerate, deteriorate, degrade)
1
slide(decline, degenerate, deteriorate, decay)
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vitiate(verb, decline, fail, lower)
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APASmart Define. (2016). crumble thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/crumble/thesaurus/synonyms
ChicagoSmart Define. 2016. "crumble thesaurus" https://smartdefine.org/crumble/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, crumble thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/crumble/thesaurus/synonyms>.
MLASmart Define. "crumble thesaurus" 24 February 2016. Web. 30 September 2026. <https://smartdefine.org/crumble/thesaurus/synonyms>