520 entries under verb topic. ×

6
drain(reduce, bother, diminish, blow)
6
exhaust(stop, decline, hurt, bother)
6
frustrate(destroy, damage, harm, challenge)
6
invalidate(stop, decline, hurt, reduce)
6
thwart(challenge, weaken, opposition, hindrance)
5
unnerve(upset, strong, disturb, weaken)
5
cave
5
corrupt(decline, shame, disgrace, degenerate)
5
debase(decline, reduce, ruin, fail)
5
deplete(diminish, blow, waste, weaken)
5
depress(upset, decline, reduce, disturb)
5
dull(diminish, disable, dampen)
5
erode(diminish, challenge, weaken, shape)
5
foil(challenge, weaken, hindrance, dent)
5
lessen(dull, decline, reduce, fail)
5
overturn(upset, drop, defeat, destroy)
5
shatter(stop, break, hurt, ruin)
5
soften(dull, decline, fail, halt)
4
blight(break, cut, hurt, ruin)
4
bore(turn, produce, clean, discover)
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APASmart Define. (2015). undermine thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/undermine/thesaurus/synonyms
ChicagoSmart Define. 2015. "undermine thesaurus" https://smartdefine.org/undermine/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, undermine thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/undermine/thesaurus/synonyms>.
MLASmart Define. "undermine thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/undermine/thesaurus/synonyms>