List of case hardened synonyms and case hardened related words.
Philistine, acclimated, acclimatized, accommodated, accustomed, adapted, adjusted, backed, balking, balky, bigoted, brazen, bulldogged, bulletheaded, bullheaded, calcified, callous, calloused, conditioned, conscienceless, crusted, crusty, crystallized, dogged, dogmatic, experienced, familiarized, fanatic, flinty, fossilized, granulated, hard, hardened, hardheaded, hardhearted, headstrong, heartless, hornified, impervious, incrusted, indurate, indurated, insensitive, intolerant, inured, lapidified, lost to shame, mulish, naturalized, obdurate, obstinate, opinionated, orientated, oriented, ossified, overzealous, pachydermatous, persevering, pertinacious, petrified, pigheaded, proof against, reinforced, restive, rigidified, run-in, sclerotic, seared, seasoned, self-willed, set, shameless, solidified, steeled, steeled against, steely, stiff-necked, stiffened, stony, strengthened, strong-willed, strongheaded, stubborn, sulky, sullen, tenacious, thick-skinned, toughened, trained, unblushing, uncooperative, unregenerate, used to, vitrified, willful, wont, wonted