Synonyms for hardened

modified

1. Made hard

   compacted, stiffened, stiff; see firm 2.

2. Inured to labor or hardship

   disciplined, trained, accustomed, habituated, inured, resistant, steeled, toughened, seasoned.

   Antonyms unaccustomed, inexperienced, raw.

3. Confirmed, especially in error or vice

   callous, inveterate, obdurate, impenitent, unrepenting, impenetrable, unyielding, bad, shameless, irreclaimable, lost, incorrigible, irreligious, profane, abandoned, irredeemable, unfeeling, depraved, degenerate, tough, reprobate, insensible, chronic, hard, deadened, benumbed, habituated, unashamed, uncaring, hardhearted, inaccessible, untouched, uncontrite, sacrilegious, unsubmissive, implacable, disdainful, habitual, seared, cold, blasphemous, irreverent, impious, unrelenting, contemptuous, indurated, indurate, unbending, hard as nails*, hard-boiled*; see also callous, chronic, cruel 2. See syn. study at chronic.