dead set on
US /dɛd sɛt ɑn/
UK /dɛd sɛt ɑn/

1.
deciso a, determinato a
determined to do something, often despite difficulties or opposition
:
•
She's dead set on becoming a doctor, no matter how hard it is.
È decisa a diventare medico, non importa quanto sia difficile.
•
They were dead set on winning the championship this year.
Erano decisi a vincere il campionato quest'anno.