- rocky, bouldery, bouldered, stony - abounding in rocks or stones; "rocky fields"; "stony ground"; "bouldery beaches"
Antonym: smooth (indirect, via rough)
- flinty, obdurate, stony - showing unfeeling resistance to tender feelings; "the child's misery would move even the most obdurate heart"
Antonyms: softhearted, soft-boiled (indirect, via hardhearted)
- granitic, granitelike, rocklike, stony - hard as granite; "a granitic fist"
Antonym: soft (indirect, via hard)