Callous

a.	1.	Hardened; indurated.
	2.	Hardened in mind; insensible; unfeeling; unsusceptible. It is an immense blessing to be perfectly callous to ridicule. - T. Arnold. A callousness and numbness of soul. - Bentley.

Verb	1.	callous - make insensitive or callous; deaden feelings or morals Synonyms: cauterise, cauterize
Adj.	1.	callous - emotionally hardened; "a callous indifference to suffering"; "cold-blooded and indurate to public opinion" Synonyms: indurate, thick-skinned, pachydermatous

Philistine, anneal, apathetic, asleep, backed, benumbed, brazen, brutalize, calcified, calcify, calloused, case harden, case-hardened, cold, cold of heart, coldblooded, coldhearted, conscienceless, cornify, crusted, crusty, crystallized, dead, deadened, dull, firm, flinthearted, flinty, fossilize, fossilized, granulated, hard of heart, hard-boiled, hard-nosed, harden, hardened, hardhearted, heartless, hornified, impassible, imperceptive, impercipient, impervious, incrusted, indifferent, indurated, insensate, insentient, insolent, inure, inured, lapidified, lapidify, lithify, lost to shame, numb, numbed, obtuse, ossified, ossify, pachydermatous, petrified, petrify, proof against, reinforced, rigidified, sclerotic, seared, set, shameless, solidified, steel, steeled, steeled against, steely, stiffened, stony, stonyhearted, strengthened, temper, thick-skinned, thick-witted, tough, toughen, toughened, unabject, unblushing, uncaring, uncompassionate, uncontrite, unemotional, unfelt, unmelted, unmerciful, unnatural, unperceptive, unrepentant, unrepenting, unresponsive, unsoftened, unsympathetic, untouched, vitrified, vitrify