122 entries under complicated topic. ×

10
puzzling(adjective, hard, fancy, evil, obscure)
10
tortuous(adjective, obscure, difficult, complex, sophisticated)
9
ticklish(adjective, hard, tough, difficult, delicate)
8
problematical(adjective, hard, difficult, delicate, loose)
8
troublesome(adjective, hard, fancy, difficult, complex)
7
formidable(adjective, hard, severe, rough, difficult)
6
abstruse(adjective, hard, fancy, evil, obscure)
6
delicate(hard, difficult, complex, awkward, tricky)
5
awkward(adjective, tough, difficulty, difficult, delicate)
5
critical(delicate, awkward)
5
enigmatic(adjective, hard, evil, obscure, difficult)
5
mystifying(adjective, hard, evil, delicate, loose)
4
confusing(adjective, hard, complex, tricky)
4
entangled(adjective, hard, fancy, obscure, difficult)
4
obscure(adjective, hard, difficult, complex, sophisticated)
4
recondite(adjective, hard, fancy, evil, obscure)
3
dense(adjective, difficult, complex, involved)
3
ornate(adjective, fancy, exact, complex, involved)
3
subtle(adjective, hard, complex, tricky)
2
Daedalean(adjective, hard, fancy, obscure, difficult)
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APASmart Define. (2015). knotty thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/knotty/thesaurus/synonyms
ChicagoSmart Define. 2015. "knotty thesaurus" https://smartdefine.org/knotty/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, knotty thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/knotty/thesaurus/synonyms>.
MLASmart Define. "knotty thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/knotty/thesaurus/synonyms>