750 entries under verb topic. ×

6
interfere(stop, check, reject, oppose)
6
interfere with(expression, block, damage, harm)
6
interrupt(stop, hold, control, close)
6
let down(expression, phrasal verb, upset, fail)
6
lick(stop, beat, defeat, crush)
6
mystify(upset, trouble, obscure, hinder)
6
perplex(upset, trouble, bother, disturb)
6
queer(stop, ruin, oppose, prevent)
6
repress(stop, hold, control, dull)
6
suppress(stop, hold, control, dull)
5
annoy(upset, bother, oppose, strain)
5
bother(upset, disturb, strain, annoy)
5
confront(stop, separate, disregard, ignore)
5
cramp(stop, check, reduce, ruin)
5
crimp(stop, ruin, oppose, halt)
5
daunt
5
dissatisfy(adjective, upset, bother, fail)
5
dun
5
exasperate(upset, bother, strain, annoy)
5
irritate(upset, bother, strain, annoy)
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APASmart Define. (2015). frustrate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/frustrate/thesaurus/synonyms
ChicagoSmart Define. 2015. "frustrate thesaurus" https://smartdefine.org/frustrate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, frustrate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/frustrate/thesaurus/synonyms>.
MLASmart Define. "frustrate thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/frustrate/thesaurus/synonyms>