83 entries under foil topic. ×

45
cancel(verb, stop, action, upset, control)
41
annul(verb, stop, upset, control, change)
26
invalidate(verb, stop, upset, control, change)
26
neutralize(verb, stop, action, end, fix)
21
negate(verb, stop, action, change, end)
17
counteract(verb, stop, action, fix, settle)
13
undo(verb, stop, change, end, destroy)
10
frustrate(verb, stop, ruin, destroy, withdraw)
9
overturn(verb, stop, upset, control, change)
8
disprove(verb, decline, reject, oppose, refuse)
7
check(verb, stop, end, abandon, halt)
7
counter(verb, stop, beat, halt, curb)
7
refute(verb, stop, decline, reject, oppose)
7
thwart(verb, stop, upset, control, direct)
5
balk(verb, stop, halt, curb, prevent)
5
block(verb, stop, prevent, hinder, cross)
5
contravene(verb, decline, reject, oppose, refuse)
5
defeat(verb, stop, ruin, disregard, destroy)
5
ruin(verb, stop, end, destroy, crush)
4
baffle(verb, stop, halt, curb, prevent)
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APASmart Define. (2016). nullify thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/nullify/thesaurus/synonyms
ChicagoSmart Define. 2016. "nullify thesaurus" https://smartdefine.org/nullify/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, nullify thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/nullify/thesaurus/synonyms>.
MLASmart Define. "nullify thesaurus" 2 April 2016. Web. 20 September 2026. <https://smartdefine.org/nullify/thesaurus/synonyms>