3
hard
2
petrous
2
rocky(adjective, rugged, stony)
1
bony
1
cement
1
concrete
1
corneous
1
craggy
1
crystal
1
crystalline
1
dense
1
flinty
1
gravelly
1
gritty
1
marble
1
marblelike
1
monolithic
1
obdurate
1
pebbly
1
resistant
<12>
11 years ago|2.5k views|share |citing 
APASmart Define. (2015). stonelike thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/stonelike/thesaurus/synonyms
ChicagoSmart Define. 2015. "stonelike thesaurus" https://smartdefine.org/stonelike/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, stonelike thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/stonelike/thesaurus/synonyms>.
MLASmart Define. "stonelike thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/stonelike/thesaurus/synonyms>