to the bitter end

US /tə ðə ˈbɪtər ɛnd/
UK /tə ðə ˈbɪtər ɛnd/
"to the bitter end" picture
1.

fino alla fine, fino all'ultimo

until a struggle or unpleasant experience is completely finished, despite difficulties or suffering

:
•
They fought to the bitter end, refusing to surrender.
Hanno combattuto fino alla fine, rifiutandosi di arrendersi.
•
She decided to stick with the project to the bitter end, even though it was very challenging.
Ha deciso di portare avanti il progetto fino alla fine, anche se era molto impegnativo.
:
bitterbitternessbitter orangeendendingin the enda bitter pill (to swallow)