- The doctor said that this disease is unhealable.
- The doctor said that this ailment is incurable.
- The doctor said that this malady is untreatable.
- The doctor said that this sickness is irremediable.
- The doctor said that this blight is immedicable.
- The doctor said that this illness is remediless.
Der Arzt sagte, dass diese Krankheit unheilbar sei.