4
overturn(cancel, undo, discredit, confound, contradict)
4
run down(verb, expression, phrasal verb, stop, upset)
4
shorten(verb, cut, reduce, diminish, lower)
4
shrivel(verb, drop, cut, decline, reduce)
4
slow(verb, upset, calm, dull, quiet)
4
tax(verb, bother, fail, damage, strain)
4
tire out(verb, expression, annoy, depress, exhaust)
4
unman(upset, weakness, depress, extinguish, dishearten)
4
use up(verb, expression, phrasal verb, break, reduce)
4
wear away(verb, expression, stop, break, drop)
4
wear down(verb, expression, drop, take, cut)
3
abrogate(verb, cancel, undo, impair, discredit)
3
allay(verb, calm, dull, check, reduce)
3
alloy(verb, cut, decline, thin, corrupt)
3
atrophy(verb, decline, diminish, decrease, lessen)
3
bankrupt(verb, cut, reduce, ruin, diminish)
3
belittle(verb, reduce, destroy, damage, diminish)
3
break down(verb, expression, phrasal verb, stop, break)
3
bust(verb, reduce, ruin, destroy, damage)
3
canker(verb, reduce, destroy, damage, lower)
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APASmart Define. (2016). weaken thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/weaken/thesaurus/synonyms
ChicagoSmart Define. 2016. "weaken thesaurus" https://smartdefine.org/weaken/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, weaken thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/weaken/thesaurus/synonyms>.
MLASmart Define. "weaken thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/weaken/thesaurus/synonyms>