abnormal
adj//əbˈnɔɹ.ml̩//onormal, abnorm
Not conforming to rule or system; deviating from the usual or normal type. [First attested around the mid 19th century.]
Of or pertaining to that which is irregular, in particular, behaviour that deviates from norms of social propriety or accepted standards of mental health. [First attested around the early 20th century.]