10
horny(adjective, hardness)
6
hornlike(adjective, horn)
4
concrete
3
bony
3
granitic
3
hard
3
stony
2
adamantine
2
osseous
1
aroused
1
cartilaginous
1
cement
1
cemental
1
dense
1
dure
1
flintlike
1
flinty
1
granitelike
1
hard as nails(expression, idiom)
1
hardhearted
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APASmart Define. (2015). corneous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/corneous/thesaurus/synonyms
ChicagoSmart Define. 2015. "corneous thesaurus" https://smartdefine.org/corneous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, corneous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/corneous/thesaurus/synonyms>.
MLASmart Define. "corneous thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/corneous/thesaurus/synonyms>