a real; quite a
Está llevando todo un arsenal consigo.
He is carrying an entire arsenal with him.
— Gangs of Wasseypur. Parte 1 (2012)
Pero a la vez lo consideraba todo un azar.
But at the same time, he considered it all a matter of chance.
— El cielo sobre Berlín (1987)
Este problema es todo un reto.
This problem is quite a challenge.