Translation of "terrible" into Icelandic

My father, who was also sent to Sachsenhausen, died during the terrible winter of 1940.

Faðir minn, sem var líka sendur til Sachsenhausen, dó veturinn 1940 sem var hræðilegur vetur.

Whatever you think, this is all some terrible misunderstanding.

Hvað sem þú hugsar, þetta er allt einhver hræðileg misskilningur.

I know you think he's a terrible person.

Ég veit ađ ūér finnst hann vera hryllilegur.