adjective
- unmoved by persuasion, pity, or tender feelings; stubborn; unyielding.
- stubbornly resistant to moral influence; persistently impenitent: an obdurate sinner.
adjective
- not easily moved by feelings or supplication; hardhearted
- impervious to persuasion, esp to moral persuasion
adj.mid-15c., “stubborn; hardened,” from Latin obduratus “hardened,” past participle of obdurare “be hard, hold out, persist, endure,” from ob “against” (see ob-) + durare “harden, render hard,” from durus “hard” (see endure). Related: Obdurately.