Adamant — synonyms, definition

1. adamant (a) archaic

austere callous constant contumacious cruel determined dogged exacting firm hard harsh headstrong immovable incorrigible inflexible intractable obdurate obstinate refractory relentless • • •

2. adamant (Adjective) archaic

adamantine inexorable intransigent

adamant (Adjective) — Impervious to pleas, persuasion, requests, reason. ex. "he is adamant in his refusal to change his mind"

3. adamant (Noun) archaic

diamond

adamant (Noun) — Very hard native crystalline carbon valued as a gem.

C atomic number 6 carbon transparent gem black diamond carbonado