Crossword Dictionary
obdurate
cussed, obdurate, obstinate, unrepentant - a
stubbornly persistent in wrongdoing
synonyms
obduraffectless, callous, case-hardened, cold-blooded, compassionless, desensitized, hard, hard-boiled, hard-hearted, heartless, indurate, inhuman, inhumane, insensate, insensitive, ironhearted, merciless, pachydermatous, pitiless, remorseless, ruthless, slash-and-burn, soulless, stony (also stoney), stonyhearted, take-no-prisoners, thick-skinned, uncharitable, unfeeling, unmerciful, unsparing, unsympatheticate
in a sentence
He is known for his obdurate determination.
the obdurate refusal of the crotchety old man to let the neighborhood kids retrieve their stray ball from his backyard
etymology
mid-15c., "stubborn, inexorable, unyielding; hardened," especially against moral influences; "stubbornly wicked," from Latin obduratus "hardened," past participle of obdurare "harden, render hard; be hard or hardened; hold out, persist, endure," in Church Latin "to harden the heart against God," from ob "against" (see ob-) + durare "harden, render hard," from durus "hard," from PIE *dru-ro-, suffixed variant form of root *deru- "be firm, solid, steadfast." Variant opturate is from early 15c. in medicine in a literal sense of "stopped, obstructed." Related: Obdurately; obdurateness.