Meaning of ABERRANT in English

ABERRANT

a ‧ ber ‧ rant /ˈæbərənt, əˈberənt/ BrE AmE adjective formal

[ Date: 1500-1600 ; Language: Latin ; Origin: present participle of aberrare , from ab- 'away' + errare 'to wander' ]

not usual or normal SYN abnormal :

aberrant behaviour

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.