a 'hostile witness' [=a witness in a legal case who supports the opposing side]
The camel is specially adapted to its 'hostile' desert habitat.
It was a small town that was 'hostile' to/toward outsiders.
(..) You ever been in a war, Councilman? In a firefight? Did you feel an overabundance of control? Not Asgard. Loki. Our intelligence says Thor is not a hostile but he's worlds away. We can't depend on him to help, either. It's up to us. Phase isn't ready. Our enemy is. We need a response team. (..)2012 The Avengers
(..) Do you copy? Shut them down! Okay, let's go. No, leave it. Go! We're clear upstairs, sir. You need to go. Director Fury, do you copy? The Tesseract is with a hostile force. I have men down. Hill? A lot of men still under. I don't know how many survivors. I want every living soul not working rescue (..)2012 The Avengers