65 entries under complex topic. ×

18
painful(adjective, hard, difficult)
18
serious(adjective, hard, difficult, awkward)
18
toilful(adjective, hard, difficult, awkward)
18
troubled(adjective, hard, difficult)
14
delicate(adjective, understanding, hard, easy, keen)
8
awkward(adjective, tough, difficult, delicate, unpleasant)
7
troublesome(adjective, hard, tough, difficult)
6
tortuous(adjective, difficult, sophisticated, involved)
5
formidable(adjective, hard, tough, difficult)
4
abstruse(adjective, hard, difficult, sophisticated)
4
uphill(adjective, tough, difficult, awkward)
2
obscure(adjective, hard, difficult, sophisticated)
2
perplexing(adjective, hard, tough, difficult, delicate)
2
problematical(adjective, hard, difficult, uncertain)
1
effortful(adjective, difficult, awkward, demanding)
1
tangled(adjective, hard, difficult, sophisticated)
0
baroque(adjective, difficult, sophisticated, involved)
0
can of worms(expression, adjective, idiom, difficult)
0
convoluted(adjective, difficult, sophisticated, involved)
0
entangled(adjective, hard, difficult, sophisticated)
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APASmart Define. (2016). tricky thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/tricky/thesaurus/synonyms
ChicagoSmart Define. 2016. "tricky thesaurus" https://smartdefine.org/tricky/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, tricky thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/tricky/thesaurus/synonyms>.
MLASmart Define. "tricky thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/tricky/thesaurus/synonyms>