What is the equivalent adjective we could use for something/somebody getting on your nerves? It's not annoyed, as this is usually by something physical (or at least I think so), it's not nervous as nervousness is perceived as something different to being pissed off, agitated/upset I feel have a different meaning than "get on one's nerves".
The closest I can think to it is "being pissed off". Is there a more formal word for somebody getting on your nerves / pisses you off?
For example you wouldn't say to your boss that a colleague is pissing you off, or that they get on your nerves. You can always phrase it somehow else like "they are not being co-operative", but I would like to know if there's a formal adjective for it.