96 entries under decline topic. ×

27
weaken(verb, stop, upset, break, dull)
21
sap(noun, verb, stop, upset, dull)
19
impair(verb, stop, break, cut)
14
cripple(verb, stop, upset, break, dull)
12
debilitate(verb, stop, upset, dull, strong)
9
enervate(verb, stop, upset, strong)
9
injure(verb, upset, break, drop, cut)
9
reduce(verb, force, ruin, defeat)
8
spoil(verb, stop, break, cut)
7
break(verb, cut, hurt, reduce)
7
devitalize(verb, strong, reduce, fail)
7
vitiate(verb, break, cut, hurt)
6
exhaust(verb, stop, hurt, bother)
6
invalidate(verb, stop, hurt, reduce)
5
corrupt(verb, shame, disgrace, degenerate)
5
debase(verb, reduce, ruin, fail)
5
depress(verb, upset, reduce, disturb)
5
lessen(verb, dull, reduce, fail)
5
soften(verb, dull, fail, halt)
4
corrode(verb, break, hurt, ruin)
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APASmart Define. (2015). undermine thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undermine/thesaurus/synonyms
ChicagoSmart Define. 2015. "undermine thesaurus" https://smartdefine.org/undermine/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, undermine thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undermine/thesaurus/synonyms>.
MLASmart Define. "undermine thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/undermine/thesaurus/synonyms>