Hardened

a.	1.	Made hard, or harder, or compact; made unfeeling or callous; made obstinate or obdurate; confirmed in error or vice.
	2.	Rendered resistant to the effects of nearby explosions; as, a hardened missile silo; hardened warhead electronics.
	3.	Experienced and inured to hardship; as, hardened combat troops.
	4.	Strongly habituated to a certain type of behavior, and unlikely to change; as, a hardened criminal. Usually used only of behavior perceived negatively.

Adj.	1.	hardened - used of persons; emotionally hardened; "faced a case-hardened judge" Synonyms: case-hardened, hard-boiled
	2.	hardened - made hard or flexible or resilient especially by heat treatment; "a sword of tempered steel"; "tempered glass" Synonyms: tempered, toughened, treated
	3.	hardened - made tough by habitual exposure; "hardened fishermen"; "a peasant, dark, lean-faced, wind-inured"- Robert Lynd; "our successors...may be graver, more inured and equable men"- V.S.Pritchett Synonyms: enured, inured
	4.	hardened - converted to solid form (as concrete) Synonyms: set

Philistine, acclimated, acclimatized, accommodated, accustomed, adapted, adjusted, annealed, backed, brazen, calcified, callous, calloused, case-hardened, cold, cold of heart, coldblooded, coldhearted, conditioned, conscienceless, crusted, crusty, crystallized, experienced, familiarized, flinthearted, flinty, fossilized, granulated, hard, hard of heart, hard-boiled, hardhearted, heartless, hornified, impenitent, impervious, incrusted, indurate, indurated, insensitive, insolent, inured, lapidified, lost to shame, naturalized, obdurate, orientated, oriented, ossified, pachydermatous, petrified, proof against, reinforced, rigidified, run-in, sclerotic, seared, seasoned, set, shameless, solidified, steeled, steeled against, steely, stiffened, stony, stonyhearted, strengthened, tempered, thick-skinned, toughened, trained, unabject, unblushing, uncompassionate, uncontrite, unemotional, unfeeling, unmelted, unmerciful, unnatural, unrepentant, unrepenting, unresponsive, unsoftened, untouched, used to, vitrified, wont, wonted