100 entries under upset topic. ×

2
interfere(verb, check, bother, provoke)
2
interrupt(verb, check, bother, provoke)
2
nonplus(verb, trouble, disorder, disturb)
2
perturb(verb, trouble, disorder, bother)
2
rattle(verb, trouble, disorder, bother)
2
unsettle(verb, trouble, bother, obscure)
2
vex(verb, bother, provoke, excite)
1
abash(trouble, obscure, confuse, baffle)
1
addle(trouble, disorder, disturb, obscure)
1
astonish(verb, trouble, obscure, confuse)
1
astound(verb, dull, bother, provoke)
1
becloud(trouble, obscure, confuse, baffle)
1
befuddle(trouble, disorder, disturb, obscure)
1
bemuse(trouble, disturb, obscure, confuse)
1
bewilder someone(expression, trouble, obscure, confuse)
1
cloud(verb, trouble, dull, obscure)
1
clutter(trouble, disorder, disturb, obscure)
1
darken(verb, trouble, dull, obscure)
1
daze(trouble, disorder, disturb, obscure)
1
demoralize(trouble, obscure, confuse, baffle)
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APASmart Define. (2015). complicate thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/complicate/thesaurus/synonyms
ChicagoSmart Define. 2015. "complicate thesaurus" https://smartdefine.org/complicate/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, complicate thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/complicate/thesaurus/synonyms>.
MLASmart Define. "complicate thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/complicate/thesaurus/synonyms>