Definition of "deranged" in English

adjective

1. Disturbed or upset, especially mentally.

   • July 18 2012, Scott Tobias, AV Club The Dark Knight Riseshttp://www.avclub.com/articles/the-dark-knight-rises-review-batman,82624/ Though Bane's sing-song voice gives his pronouncements a funny lilt, he doesn't have any of the Joker's deranged wit, and Nolan isn't interested in undercutting his seriousness for the sake of a breezier entertainment.

2. Insane.

3. Malfunctioning or inoperative.

verb

1. simple past and past participle of derange