la incumbencia

responsibility, area of responsibility

i n k u m ˈb e n θ j a
incumb concern; pertain + encia forms abstract nouns denoting a state, quality, or action
noun · feminine Rare #39,992
responsibility, area of responsibility Often used in formal contexts to talk about what someone is in charge of (their duties or scope).
SP: Ese tema no es de mi incumbencia.
EN: That issue is not my responsibility.

No es de su incumbencia.

It's none of your business.

Nada de tu incumbencia.

None of your business.

— Anora (2024)

No creo que eso sea de tu incumbencia.

I don't think that's any of your business.

— Pillion (2025)

Lo que la señora Fiorini haga no es de mi incumbencia.

What Mrs. Fiorini does is none of my business.

— Locuras de verano (1955)

No es que sea de mi incumbencia.

Not that it's any of my business.

No es de nuestra incumbencia.

It is none of our business.

— Moonrise Kingdom (2012)