110 entries under hard topic. ×

22
involute(adjective, simple, difficult, complex)
22
rugged(adjective, difficulty, difficult, complex)
21
inextricable(adjective, difficult, complex, complicated)
21
sinuous(adjective, difficult, complex)
21
tangly(adjective, difficult, complex)
20
anfractuous(adjective, difficult, complex)
20
esoteric(adjective, evil, difficult, complex)
20
laborious(adjective, difficult, complex, awkward)
20
nasty(adjective, evil, difficult, complex)
20
operose(adjective, difficult, complex, awkward)
20
rough(adjective, difficult, complex, awkward)
20
sensitive(adjective, difficult, complex)
20
severe(adjective, difficult, complex, awkward)
20
sticky(adjective, difficult, delicate, complex)
20
toilsome(adjective, difficult, complex, awkward)
20
trying(adjective, difficulty, difficult, complex)
19
arduous(adjective, difficult, complex, awkward)
19
backbreaking(adjective, difficult, complex, awkward)
19
burdensome(adjective, difficult, complex, awkward)
19
disturbing(adjective, difficult, complex)
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APASmart Define. (2015). intricate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/intricate/thesaurus/synonyms
ChicagoSmart Define. 2015. "intricate thesaurus" https://smartdefine.org/intricate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, intricate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/intricate/thesaurus/synonyms>.
MLASmart Define. "intricate thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/intricate/thesaurus/synonyms>