1.
Sworn is the past participle of swear .
2.
If you make a ~ statement or declaration, you swear that everything that you have said in it is true.
The allegations against them were made in ~ evidence to the inquiry.
ADJ: ADJ n
3.
If two people or two groups of people are ~ enemies, they dislike each other very much.
It somehow seems hardly surprising that Ms Player is now his ~ enemy.
ADJ: ADJ n