flinty
flinty /ˈflin(t)ē/ I. adjective 1. of, containing, or reminiscent of flint • flinty soil. 2. (of a person or their expression) very hard and unyielding • a flinty stare. II. derivatives 1. flintily /ˈflintl-ē / adverb 2. flintiness /ˈflin(t)ēnəs / noun
