Synonyms of obdurate

1 Syllable

hard, firm, mean, mule, harsh, tough

2 Syllables

willful, stony, steely, ferrous, stubborn, irons, steadfast, hang-tough, ferric, bullhead, tough-nut, wayward, ruthless, seton, mulish, stonier, steeler, fixed, steelier, rigid, iron, short-fuse, callous, heartless, dogged

3 Syllables

hard-hearted, pitiless, stiff-necked, thick-skinned, unstirred, hardhearted, unpitying, racialist, dogmatic, relentless, hardline, austere, severest, adamant, severer, self-willed, unpliable, persistent, uncordial, bulldogged, rocklike, tenacious, cold-blooded, hard-boiled, hard-nosed, hard-shelled, unbending, unfeeling, ruffianly, uncompliant, unyielding, hardened, wrong-headed, worked-up, strong-minded, perverse

4 Syllables

unindulgent, stony-hearted, implacable, unrelenting, unshakable, aversive, contumacious, impenitent, ironhearted, immovable, remorseless, indurate, singleminded, stonyhearted, unamiable, iron-handed, unforgetful, never-failing, case-hardened, unrepenting, intractable, narrowminded, insensible, intolerant, obstinate, inflexible, unbendable, xenophobic, chauvinistic

5 Syllables

unemotional, inexorable, unimpressible, unsympathetic, casehardened, unadaptable, unpermissive, imperceivable, uncompromising, uncontrollable, inalterable, adamantine, opinionated

6 Syllables

uncompassionate, uncooperative, unapologetic, opinionative, perseverative