Noun
1. the psychological state of being irritated or annoyed
2. anger produced by some annoying irritation
3. an unpleasant person who is annoying or exasperating
4. something or someone that causes trouble; a source of unhappiness;
"washing dishes was a nuisance before we got a dish washer""a bit of a bother""he's not a friend, he's an infliction"5. the act of troubling or annoying someone