immalleable

Immalleable, im-mal′le-a-bl, adj. not malleable.

But that immalleable mind lacked the strong fibre of logic and foresight—which is all that moral force amounts to—that lifts a man triumphant above his worst temptations; and he paid the bitter and hideous penalty in a poverty, loneliness, and living death that would have moved the theologians of his blood to the uneasy suspicion that punishment is of this earth, a logical sequence of foolish and short-sighted acts.