1. (imp. & p. p.) of Harden.

2. (a.) Made hard, or compact; made unfeeling or callous; made obstinate or obdurate; confirmed in error or vice.

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