up against
US /ʌp əˈɡenst/
UK /ʌp əˈɡenst/

1.
contro, vicino a
in contact with or close to
:
•
He leaned up against the wall.
Si appoggiò contro il muro.
•
The boat was tied up against the dock.
La barca era legata contro il molo.
2.
contro, di fronte a
facing or contending with (a difficulty or opponent)
:
•
We are up against a very strong team.
Siamo contro una squadra molto forte.
•
She's up against a tight deadline.
È contro una scadenza stretta.