- 1 [countable, usually singular] a thing, person, or situation that is annoying or causes trouble or problems I don't want to be a nuisance, so tell me if you want to be alone. I hope you're not making a nuisance of yourself. It's a nuisance having to go back tomorrow. What a nuisance!
- 2[countable, uncountable] (law) behavior by someone that annoys other people and that a court can order the person to stop He was charged with causing a public nuisance.