Obdurate

Adjective

 * 1) Stubbornly persistent, generally in wrongdoing; refusing to reform or repent.
 * 2)  Physically hardened, toughened.

Synonyms

 * : hardened, hard-hearted, impertinent, intractable, unrepentant, unyielding, recalcitrant

Derived terms

 * obduracy

Related terms

 * durable, duration
 * endure, endurance, enduring

Adverbs for Obdurate
sternly; stubbornly; incorrigibly; implacably; terribly; harshly; roughly; callously; mulishly; cantankerously; grossly; tenaciously; sullenly; perversely; dreadfully; shockingly; dogmatically; austerely; stiffly; uncompromisingly; tyrannically; puritanically; cruelly; bitterly; unaccountably; unbearably; intolerably.

Thesaurus
adamant, asleep, benumbed, bony, brazen, callous, calloused, case-hardened, cement, cemental, cold, cold of heart, coldblooded, coldhearted, concrete, conscienceless, corneous, dead, deadened, dense, diamondlike, dogged, dour, dull, dure, firm, flinthearted, flintlike, flinty, fundamentalist, granitelike, granitic, hard, hard as nails, hard of heart, hard-bitten, hard-boiled, hard-nosed, hard-set, hardened, hardhearted, heartless, hidebound, horny, immovable, impassible, impenitent, imperceptive, impercipient, impliable, indurated, inexorable, inflexible, insensate, insensible, insensitive, insentient, insolent, inured, iron, iron-hard, ironbound, ironclad, ironhanded, ironlike, lapideous, lithoid, lithoidal, lost to shame, marble, marblelike, mulish, muscle-bound, numb, numbed, obstinate, obtuse, orthodox, osseous, procrustean, purist, puristic, puritan, puritanic, relentless, resistant, resistive, rigid, rigorist, rigoristic, rigorous, rockbound, rocklike, rocky, seared, shameless, solid, steellike, steely, stiff, stiff-necked, stonelike, stony, stonyhearted, straightlaced, straitlaced, stubborn, thick-skinned, thick-witted, tough, unabject, unbending, unblushing, uncompassionate, uncompromising, uncontrite, unemotional, unfeeling, unfelt, unmelted, unmerciful, unnatural, unperceptive, unrelenting, unrepentant, unrepenting, unresponsive, unsoftened, unsympathetic, untouched, unyielding