Terrible, defined.

ter·ri·ble (tr-bl) KEY ADJECTIVE:
Causing great fear or alarm; dreadful: a terrible bolt of lightning; a terrible curse.
Extremely formidable: terrible responsibilities.
Extreme in extent or degree; intense: "the life for which he had paid so terrible a price" (Leslie Fiedler).
Unpleasant; disagreeable: had a terrible time at the party; terrible food.
Very bad: a terrible actor.