the act of troubling or annoying someone 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"
The act of annoying, or the state of being annoyed; molestation; vexation; annoy
Annoyance is the feeling that you get when someone makes you feel fairly angry or impatient. To her annoyance the stranger did not go away = irritation
An annoyance is something that makes you feel angry or impatient. Inconsiderate neighbours can be more than an annoyance