Synonyms to flinty

adamant, adamantine, at a standstill, cast-iron, dour, firm, flintlike, frozen, granitelike, granitic, grim, hard, hard-core, immobile, immotile, immotive, immovable, immutable, implacable, impliable, inductile, inelastic, inexorable, inextensible, inextensile, inextensional, inflexible, intractable, intractile, intransigent, iron, irreconcilable, irremovable, irresilient, lithic, marblelike, nonelastic, nonstretchable, obdurate, pat, petrified, petrogenic, relentless, rigid, rigorous, rock, rock-ribbed, slaty, standpat, stationary, steely, stern, stiff, stone, stubborn, unaffected, unalterable, unbending, unchangeable, uncompromising, unextendible, unextensible, unflexible, ungiving, unlimber, unmalleable, unmovable, unmoved, unmoving, unpliable, unpliant, unrelenting, unswayable, untractable, unyielding, cement, Tarmac, Tarvia, accouple, accumulate, adhere, adherent, adhesive, adobe, affix, agglutinate, amass, anchor, annex, articulate, ashlar, asphalt, assemble, associate, attach, band, barnacle, belay, bind, biscuit, bisque, bitumen, bituminous macadam, blacktop, bond, bone, bony, bowl, bracket, b