black sheep
US /blæk ʃiːp/
UK /blæk ʃiːp/

1.
la pecora nera
a member of a family or group who is regarded as a disgrace to them
:
•
He was always considered the black sheep of the family because of his unconventional lifestyle.
È sempre stato considerato la pecora nera della famiglia a causa del suo stile di vita non convenzionale.
•
Every organization has its black sheep, but we try to support everyone.
Ogni organizzazione ha la sua pecora nera, ma cerchiamo di sostenere tutti.