62 entries under complex topic. ×

2
ticklish(hard, delicate, tricky, complicated)
2
troublesome(adjective, hard, difficult, delicate, loose)
1
Gordian(adjective, difficult, awkward, tricky)
1
abstract(hard, delicate, tricky, complicated)
1
abstruse(adjective, hard, difficult, delicate, loose)
1
byzantine(adjective, difficult, intricate, thorny)
1
complicated(adjective, hard, difficult, awkward)
1
dense(adjective, difficult, intricate, thorny)
1
effortful(adjective, difficult, awkward, demanding)
1
enigmatical(adjective, hard, obscure, delicate)
1
entangled(adjective, hard, difficult, delicate, loose)
1
formidable(adjective, hard, difficult, delicate)
1
rough(adjective, difficult, awkward, demanding)
1
sticky(adjective, difficult, awkward, demanding)
1
subtle(hard, delicate, tricky, complicated)
1
terrible(adjective, difficult, awkward, demanding)
1
uphill(adjective, difficult, awkward, demanding)
0
Daedalean(adjective, difficult, intricate, thorny)
0
arduous(adjective, difficult, awkward, demanding)
0
can of worms(expression, adjective, idiom, difficult)
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APASmart Define. (2015). problematical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/problematical/thesaurus/synonyms
ChicagoSmart Define. 2015. "problematical thesaurus" https://smartdefine.org/problematical/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, problematical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/problematical/thesaurus/synonyms>.
MLASmart Define. "problematical thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/problematical/thesaurus/synonyms>