01 a. Hardened in feelings, esp. against moral or mollifying influences; unyielding; hard-hearted; stubbornly wicked.
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1.
Hardened in feelings, esp. against moral or mollifying influences; unyielding; hard-hearted; stubbornly wicked.“The very custom of evil makes the heart obdurate against whatsoever instructions to the contrary.” — Hooker.“Art thou obdurate, flinty, hard as steel, Nay, more than flint, for stone at rain relenteth?” — Shak.
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2.
Hard; harsh; rugged; rough; intractable.“There is no flesh in man's obdurate heart.” — Cowper.
Syn.
Hard; firm; unbending; inflexible; unyielding; stubborn; obstinate; impenitent; callous; unfeeling; insensible; unsusceptible.
-- Obdurate, Callous, Hardened. Callous denotes a deadening of the sensibilities; as, a callous conscience. Hardened implies a general and settled disregard for the claims of interest, duty, and sympathy; as, hardened in vice. Obdurate implies an active resistance of the heart and will aganst the pleadings of compassion and humanity.