adamantine
ad·a·man·tine
adj\ˌa-də-ˈman-ˌtēn, -ˌtīn, -ˈman-tən\
Definition of ADAMANTINE
1
: made of or having the quality of adamant
2
: rigidly firm : unyielding <adamantine discipline>
3
: resembling the diamond in hardness or luster
Examples of ADAMANTINE
- <the adamantine opposition of his parents to his marriage to a girl from a poor family>
Origin of ADAMANTINE
Middle English, from Latin adamantinus, from Greek adamantinos, from adamant-, adamas
First Known Use: 13th century
Related to ADAMANTINE
Synonyms: adamant, obstinate, bullheaded, dogged, hard, hardened, hardheaded, hard-nosed, headstrong, immovable, implacable, inconvincible, inflexible, intransigent, mulish, obdurate, opinionated, ossified, pat, pertinacious, perverse, pigheaded, self-opinionated, self-willed, stiff-necked, stubborn, unbending, uncompromising, unrelenting, unyielding, willful (or wilful)
Related Words: anal-retentive, obsessive; wayward, wrongheaded; determined, hell-bent, inexorable, persistent, relentless, resolved, set, single-minded, steadfast, stouthearted, tenacious, unflinching; firm, hard-line, hard-shell (or hard-shelled), iron, severe, stern, strict; hidebound, narrow-minded, rigid; bloody-minded [chiefly British], cantankerous; contrary, cussed; contumacious, disobedient, froward, insubordinate, intractable, recalcitrant, refractory, uncooperative, ungovernable, unmanageable, unruly; defiant, insurgent, mutinous; indomitable, invincible, unconquerable; confirmed, inveterate, unregenerate; demanding, exacting
Near Antonyms: docile, obedient, placable, submissive, tractable; accepting, persuadable, receptive, responsive, willing; governable, manageable, reasonable, temperate; slavish, subservient
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