deviant /ˈdiː.vi.ənt/noun 3adjective 1forms 4 noun3 •A person who deviates, especially from norms of social behavior.He was branded as a deviant and ostracized. •A thing, phenomenon, or trend that deviates from an expectation or pattern.As the graph shows, the March sales trend is the deviant. •(Internet) A member of the online art community DeviantArt.While I myself have no problems as far as favoriting instead of commenting is concerned, since a lot of deviants are like this, I thought it was right to tell people how to comment correctly. — 2009 adjective1 •Characterized by deviation from an expectation or a social standard.At the trial, the extent of his deviant behaviour became clear. formsDeviants · deviants · more deviant · most deviant