Synonyms for stubborn

adamant, bullheaded, determined, dogged, fixed, hardheaded, headstrong, industrious, inflexible, insistent, intransigent, obstinate, persistent, pertinacious, relentless, resolute, rigid, single-minded, strong-minded, tenacious, unaccommodating, unadaptable, uncompromising, uncooperative, unrelenting, unshakeable, unyielding, willful