153 entries under difficult topic. ×

10
puzzling(adjective, hard, evil, obscure)
9
entangled(verb, adjective, hard, obscure)
9
fancy(adjective, delicate, plain, exact)
7
abstruse(adjective, hard, evil, obscure)
7
awkward(adjective, difficulty, delicate, unpleasant)
7
obscure(adjective, hard, complex, sophisticated)
6
ticklish(adjective, hard, delicate, awkward)
5
delicate(adjective, hard, fancy, complex)
5
troublesome(adjective, hard, severe, rough)
4
baffling(adjective, hard, complex, awkward)
4
hairy(adjective, tough, rough, heavy)
4
onerous(adjective, hard, tough, severe, rough)
4
recondite(adjective, evil, obscure, heavy)
4
wearying(adjective, tough, rough, heavy)
3
demanding(adjective, hard, tough, rough)
3
enigmatic(adjective, hard, evil, obscure)
3
exacting(adjective, tough, rough, heavy)
3
formidable(adjective, hard, tough, severe, rough)
3
fussy(adjective, complete, fancy, exact)
3
harsh(adjective, hard, severe, rough)
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APASmart Define. (2016). complicated thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/complicated/thesaurus/synonyms
ChicagoSmart Define. 2016. "complicated thesaurus" https://smartdefine.org/complicated/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, complicated thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/complicated/thesaurus/synonyms>.
MLASmart Define. "complicated thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/complicated/thesaurus/synonyms>