Synonyms and related words :
balking, balky, bigoted, bulldogged, bulletheaded, bullheaded, case-hardened, dogged, dogmatic, fanatic, hardheaded, headstrong, intolerant, intractable, mulish, obstinate, opinionated, overzealous, persevering, pertinacious, perverse, restive, self-willed, set, stiff-necked, strong-willed, strongheaded, stubborn, sulky, sullen, tenacious, uncooperative, unregenerate, unyielding, willful