de·vi·ant (dē'vē-ənt) adj. Differing from a norm or from the accepted standards of a society. n. One that differs from a norm, especially a person whose behavior and attitudes differ from accepted social standards.
[Middle English deviaunt, from Late Latin dēviāns, dēviant-, present participle of dēviāre, to deviate; see deviate.] de'vi·ance, de'vi·an·cy n.