FLINTY
Source: 566, 567
flinty. Flinty, a. made of flint, strong, hardhearted, cruel
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Flint″y (?), a. [Compar. Flintier (?); superl. Flintiest.] Consisting of, composed of, abounding in, or resembling, flint; as, a flinty rock; flinty ground; a flinty heart. Flinty rock, or Flinty state, a siliceous slate; — basanite is here included. See Basanite.