4
unlash(verb, separate, remove, release, free)
4
unnerve(verb, strong, lessen, unsettle, perturb)
4
unplug(verb, open)
4
unscramble(verb, separate, unwind, detach, emancipate)
4
unstop(verb, clear, separate, open, release)
4
unstring
4
untangle(verb, separate, release, free, relax)
4
unwind(verb, separate, open, release, free)
4
unzip(verb, open)
3
bring down(verb, expression, cancel, invalidate, negate)
3
bring to naught(verb, expression, idiom, restrict, cancel)
3
clear(verb, drop, separate, release, free)
3
cleave(verb, break, part, cut, separate)
3
counterbalance(verb, restrict, cancel, reverse, balance)
3
crack(verb, clear, separate, release, free)
3
cross(verb, break, part, cut, separate)
3
debauch(verb, sex, lure)
3
demoralize(agitate, frustrate, confound, unsettle, perturb)
3
disaffirm(verb, reverse, contradict, annul, void)
3
disappoint(verb, cross, frustrate, blank, thwart)
10 years ago|18k views|share |citing 
APASmart Define. (2016). undo thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undo/thesaurus/synonyms
ChicagoSmart Define. 2016. "undo thesaurus" https://smartdefine.org/undo/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, undo thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undo/thesaurus/synonyms>.
MLASmart Define. "undo thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/undo/thesaurus/synonyms>