a hair
Ella no tiene un pelo de tonta.
She's no fool.
La genialidad y la locura están a un pelo de distancia.
Genius and madness are just a hair's breadth apart.
It was a close call.
Nadie en Roma le tocaría un pelo.
Nobody in Rome would lay a finger on him.
— Las noches de Cabiria (1957)
I didn't like it one bit.
No sabía que tenías un pelo tan bonito.
I didn't know you had such beautiful hair.
— Haz lo que debas (1989)