Adamantine
Synonyms: Adamant, steadfast, implacable, immovable, unbending, intransigent, wilful, unrelenting, ossified, willful, bullheaded, hardheaded, opinionated, headstrong, perverse, strict, pigheaded, relentless, inexorable, rigid, stiff-necked, tenacious, stern, severe, wrongheaded, unconquerable, firm, hard-line, hidebound, cantankerous, contrary, unmanageable, single-minded, uncooperative, ungovernable, mutinous, set, bloody-minded, narrow-minded, hell-bent, insubordinate, insurgent, demanding, stubborn, hardened, obdurate, unyielding, obstinate, mulish, inflexible, uncompromising, pertinacious, hard, obsessive, dogged, pat, iron, persistent, determined, hard-nosed, inconvincible, self-willed, unflinching, deaf to reason, resolved, self-opinionated, defiant, wayward, invincible, indomitable, intractable, contumacious, hard-shell, refractory, recalcitrant, stouthearted, hard-shelled, disobedient, inveterate, anal-retentive, unruly, confirmed, cussed, exacting, froward, and unregenerate.
Example Sentences
Her adamantine will helped her overcome every obstacle.
The knight wore adamantine armor that no sword could pierce.
His adamantine resolve impressed everyone around him.
The mountain stood with adamantine strength against the storm.
She held an adamantine belief in justice.
His expression was cold and adamantine.
The law was enforced with adamantine firmness.
Her adamantine loyalty never wavered.
The sculpture had an adamantine quality that made it seem eternal.
He spoke with adamantine confidence.