Synonyms of stiff-necked

1 Syllable
set, mean, hard, firm, tough, stern, harsh, mule
2 Syllables
well-set, willful, stubborn, mulish, sterner, rigid, iron, bullhead, fixed, callous, hardshell, sternest, heartless, dogged
3 Syllables
uncompliant, unyielding, hard-hearted, thick-skinned, wrong-headed, hard-nosed, adamant, unfeeling, pigheaded, dogmatic, relentless, hard-boiled, unbending, perverse
4 Syllables
immovable, implacable, unrelenting, unshakable, obdurate, unfaltering, doctrinaire, obstinate, inflexible, unbendable, indurate
5 Syllables
uncompromising, unemotional, inexorable, unimpressible, unsympathetic
6 Syllables
uncompassionate, uncooperative