Synonyms of adamantine
- 1 Syllable
- hard, firm, mule
- 2 Syllables
- hardest, steely, irons, mulish, harder, steelier, steeler, rigid, ferrous, iron, brass-bound, brassbound, ferric
- 3 Syllables
- uncompliant, unyielding, hard-handed, hardheaded, adamant, pigheaded, incompliant, shatterproof, relentless, unbending, hard-bitten
- 4 Syllables
- unbreakable, remorseless, implacable, intransigent, obdurate, unrelenting, obstinate, inflexible, unbendable, infrangible, nonbreakable, singleminded, diamondlike
- 5 Syllables
- uncompromising, inalterable, inexorable, unadaptable, opinionated, unpermissive, diamondiferous