[n] the act of troubling or annoying someone
[n] 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"
[n] anger produced by some annoying irritation
[n] an unpleasant person who is annoying or exasperating
[n] the psychological state of being irritated or annoyed
aggravation, anger, bummer, choler, disagreeable person, displeasure, exasperation, exasperation, frustration, harassment, huff, impatience, ire, irritant, irritation, mental state, miff, mistreatment, negative stimulus, nuisance, pinprick, pique, plague, psychological state, red flag, restlessness, seeing red, snit, temper, thorn, torment, unpleasant person
\An*noy"ance\, n. [OF. anoiance, anuiance.]
1. The act of annoying, or the state of being annoyed; molestation; vexation; annoy. A deep clay, giving much annoyance to passengers. --Fuller. For the further annoyance and terror of any besieged place, they would throw into it dead bodies. --Wilkins.
2. That which annoys. A grain, a dust, a gnat, a wandering hair, Any annoyance in that precious sense. --Shak.