1
acuminated
1
acuminous
1
adverse(adjective, difficult)
1
apical
1
armed
1
bewildering(hard, tricky, complicated, puzzling, confusing)
1
bristling(adjective, sharp, sharpness, pointed)
1
brutal
1
cantankerous(adjective, difficult)
1
chancy(bad, delicate, heavy, tricky, risky)
1
confounding(hard, delicate, complex, tricky, complicated)
1
confusing(hard, delicate, complex, tricky, complicated)
1
conical
1
contrary(adjective, difficult)
1
cornuted
1
craggy
1
cumbersome(adjective, difficult)
1
cuspate
1
cusped
1
cutting(adjective, sharp)
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APASmart Define. (2015). thorny thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/thorny/thesaurus/synonyms
ChicagoSmart Define. 2015. "thorny thesaurus" https://smartdefine.org/thorny/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, thorny thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/thorny/thesaurus/synonyms>.
MLASmart Define. "thorny thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/thorny/thesaurus/synonyms>