Pocket Thesaurus
Synonyms of adamantine
adamant, firm, hardheaded, implacable, incompliant, inexorable, inflexible, intransigent, mulish, obdurate, obstinate, opinionated, pigheaded, relentless, remorseless, rigid, unbendable, unbending, unbreakable, uncompliant, uncompromising, unrelenting, unyielding
See this content immediately after install