adjective, flint·i·er, flint·i·est.

composed of, containing, or resembling flint, especially in hardness.
unyielding; unmerciful; obdurate: a flinty heart.

Origin of flinty

First recorded in 1530–40; flint + -y1
Related formsflint·i·ly, adverbflint·i·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for flinty

Contemporary Examples of flinty

Historical Examples of flinty

  • Others go in, but I beat against its flinty portals with hands that bleed.

    The Trail of '98

    Robert W. Service

  • “Under the heart of the flinty hill lies the coal,” he said simply.

    The Bishop of Cottontown

    John Trotwood Moore

  • Closer and closer he shrinks to the rock, as if to bury himself in its flinty surface.

    Adrift in the Wilds

    Edward S. Ellis

  • Had the flinty and inexorable Robespierre turned fainthearted at last?


    Ernest Daudet

  • But she met the eyes looking into hers with a flinty resistance.

British Dictionary definitions for flinty


adjective flintier or flintiest

of, relating to, or resembling flint
hard or cruel; obdurate; unyielding
Derived Formsflintily, adverbflintiness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for flinty

"hard-hearted," 1530s, from flint + -y (2). Literal sense of "resembling flint" is from 1640s. Related: Flintily; flintiness.

Online Etymology Dictionary, © 2010 Douglas Harper