393 entries under adjective topic. ×

20
involute(hard, simple, difficult, complex)
20
serious(hard, difficult, complex, awkward)
20
sticky(hard, difficult, delicate, complex)
20
tough(hard, difficult, complex)
19
arduous(hard, difficult, complex, awkward)
19
backbreaking(hard, difficult, complex, awkward)
19
composite(hard, difficult, complex)
19
esoteric(hard, difficult, complex)
19
grinding(hard, difficult, complex, awkward)
19
laborious(hard, difficult, complex, awkward)
19
nasty(hard, difficult, complex)
19
operose(hard, difficult, complex, awkward)
19
painful(hard, difficult, complex)
19
rough(hard, difficult, complex, awkward)
19
rugged(hard, difficult, complex, awkward)
19
tangly(hard, difficult, complex)
19
toilful(hard, difficult, complex, awkward)
18
tangled(verb, hard, simple, obscure)
18
anfractuous(hard, difficult, complex)
18
burdensome(hard, difficult, complex, awkward)
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APASmart Define. (2015). involved thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/involved/thesaurus/synonyms
ChicagoSmart Define. 2015. "involved thesaurus" https://smartdefine.org/involved/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, involved thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/involved/thesaurus/synonyms>.
MLASmart Define. "involved thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/involved/thesaurus/synonyms>