64 entries under tricky topic. ×

62
complex(adjective, upset, hard, simple, difficult)
55
intricate(adjective, hard, complete, simple, fancy)
46
difficult(adjective, hard, difficult, delicate, complex)
41
involved(verb, adjective, hard, simple, difficult)
37
knotty(adjective, hard, simple, evil, difficulty)
34
labyrinthine(adjective, hard, simple, difficulty, difficult)
27
hard(adjective, difficult, complex, awkward, tedious)
26
thorny(adjective, hard, difficulty, difficult, delicate)
21
sticky(adjective, hard, difficult, delicate, complex)
19
esoteric(adjective, hard, evil, difficult, complex)
17
tangled(verb, adjective, hard, simple, obscure)
11
perplexing(adjective, hard, obscure, difficult, delicate)
10
puzzling(adjective, hard, evil, obscure, difficult)
9
entangled(verb, adjective, hard, obscure, difficult)
7
abstruse(adjective, hard, evil, obscure, difficult)
7
awkward(adjective, difficulty, difficult, delicate, unpleasant)
7
obscure(adjective, hard, difficult, complex, sophisticated)
6
ticklish(adjective, hard, difficult, delicate, awkward)
5
confusing(adjective, hard, complex, involved)
5
deep(adjective, hard, evil, obscure, heavy)
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APASmart Define. (2016). complicated thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/complicated/thesaurus/synonyms
ChicagoSmart Define. 2016. "complicated thesaurus" https://smartdefine.org/complicated/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, complicated thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/complicated/thesaurus/synonyms>.
MLASmart Define. "complicated thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/complicated/thesaurus/synonyms>