I. a-ˈber-ənt, ə-, -ˈbe-rənt; ˈa-bə-rənt, -ˌber-ənt, -ˌbe-rənt adjective
Etymology: Latin aberrant-, aberrans, present participle of aberrare to go astray, from ab- + errare to wander, err
Date: circa 1780
1. : straying from the right or normal way
2. : deviating from the usual or natural type : atypical
• ab·er·rance -ən(t)s noun
• ab·er·ran·cy -ən(t)-sē noun
• ab·er·rant·ly adverb
II. noun
Date: 1938
1. : an aberrant group, individual, or structure
2. : a person whose behavior departs substantially from the standard