1. A day marked by misfortune, difficulty, or unpleasant events experienced by a specific person
That was a terrible day for you, losing your job and your wallet on the same day
Foi um terrível dia para você, perder seu emprego e sua carteira no mesmo dia
2. An expression of sympathy or empathy for someone having a bad day
I heard about the accident. What a terrible day for you!
Ouvi falar do acidente. Que terrível dia para você!