unreformable

from WordNet (r) 3.0 (2006)

unreformable
    adj 1: insusceptible of reform; "vicious irreclaimable boys";
           "irredeemable sinners" [syn: {irreclaimable},
           {irredeemable}, {unredeemable}, {unreformable}]
    2: unrepentant and incapable of being reformed; "an unregenerate
       criminal" [syn: {unreformable}, {unregenerate}]