The Collaborative International Dictionary of English v.0.48:
Unreformable \Unreformable\ See reformable.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]