es totalmente inaceptable

is totally unacceptable

→ ser
phrase Rare #52,199
is totally unacceptable A strong way to express disapproval.
SP: Llegar tarde sin avisar es totalmente inaceptable.
EN: Arriving late without letting anyone know is totally unacceptable.

Su petición de abandonar Berlín es totalmente inaceptable.

Their request to leave Berlin is completely unacceptable.

— La Caída (2004)

Y es totalmente inaceptable.

And that is totally unacceptable.

— Senna (2010)

Esto es totalmente inaceptable.

This is completely unacceptable.

— Titanic (1997)

Eso es totalmente inaceptable.

That is completely unacceptable.