Variant of obdurate
- not easily moved to pity or sympathy; hardhearted
- hardened and unrepenting; impenitent
- not giving in readily; stubborn; obstinate; inflexible
Origin: Middle English from Classical Latin obduratus, past participle of obdurare, to harden from ob-, intensive (see ob-) plush durare, to harden from durus, hard: see duress
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