60 entries under complicated topic. ×

38
difficult(adjective, hard, rough, difficult, delicate)
34
knotty(adjective, hard, difficulty, difficult, delicate)
30
hard(adjective, rough, difficult, delicate, complex)
28
complex(adjective, hard, difficult, delicate, awkward)
28
tricky(adjective, hard, difficult, complex)
27
intricate(adjective, hard, difficulty, difficult, delicate)
25
problematic(adjective, hard, difficult, delicate, complex)
23
involved(adjective, hard, difficult, delicate, complex)
20
labyrinthine(adjective, hard, difficulty, difficult, complex)
19
Gordian(adjective, hard, difficult, complex, involved)
19
sophisticated(adjective, hard, difficult, complex, involved)
18
byzantine(adjective, hard, difficult, complex, involved)
10
troublesome(adjective, hard, rough, difficult, delicate)
8
perplexing(adjective, hard, difficult, delicate, complex)
6
critical(bad, delicate, heavy, awkward, tricky)
5
baffling(adjective, difficult, delicate, complex, tricky)
5
tangled(hard, difficulty, tricky)
4
abstruse(adjective, hard, difficult, delicate, loose)
4
touchy(bad, delicate, heavy, awkward, tricky)
3
problematical(adjective, hard, difficult, delicate, complex)
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APASmart Define. (2015). thorny thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/thorny/thesaurus/synonyms
ChicagoSmart Define. 2015. "thorny thesaurus" https://smartdefine.org/thorny/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, thorny thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/thorny/thesaurus/synonyms>.
MLASmart Define. "thorny thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/thorny/thesaurus/synonyms>