100 entries under upset topic. ×

19
perplex(verb, trouble, disorder, bother)
17
confound(verb, trouble, disorder, bother)
16
confuse(verb, disorder, bother, disturb)
14
muddle(verb, trouble, disorder, bother)
13
involve(verb, trouble, mean, simple)
9
obscure(verb, trouble, check, disturb)
7
mix up(verb, expression, phrasal verb, hold)
6
embarrass(verb, trouble, simple, obscure)
6
embroil(verb, hold, mean, cover)
5
jumble(verb, disorder, disturb, obscure)
4
baffle(verb, trouble, disturb, obscure)
4
mess up(verb, expression, trouble, obscure)
4
mystify(verb, trouble, disturb, obscure)
3
amaze(verb, trouble, bother, disturb)
3
puzzle(noun, verb, trouble, bother)
2
bedevil(verb, trouble, obscure, difficult)
2
discompose(verb, trouble, bother, obscure)
2
disturb(verb, disorder, bother, spoil)
2
fluster(verb, trouble, disorder, bother)
2
frustrate(verb, trouble, check, disturb)
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APASmart Define. (2015). complicate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/complicate/thesaurus/synonyms
ChicagoSmart Define. 2015. "complicate thesaurus" https://smartdefine.org/complicate/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, complicate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/complicate/thesaurus/synonyms>.
MLASmart Define. "complicate thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/complicate/thesaurus/synonyms>