2
complex(noun, adjective)
2
hard
2
harsh
1
ambitious
1
burdensome
1
challenging
1
characteristic
1
complicated
1
composite
1
contrary
1
exhausting
1
fastidious
1
immaterial
1
laborious
1
oppressive
1
perverse
1
property
1
troublesome
1
unpleasant
1
unreliable
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APASmart Define. (2016). difficult thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/difficult/thesaurus/broader
ChicagoSmart Define. 2016. "difficult thesaurus" https://smartdefine.org/difficult/thesaurus/broader (accessed September 20, 2026).
HarvardSmart Define 2016, difficult thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/difficult/thesaurus/broader>.
MLASmart Define. "difficult thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/difficult/thesaurus/broader>