From Longman Dictionary of Contemporary Englishaberranta‧ber‧rant /ˈæbərənt, əˈberənt/ adjective formal NORMALnot usual or normal SYN abnormal aberrant behaviour
Examples from the Corpus
aberrant• So-called aberrant behavior, in particular lesbian and homosexual behavior, was shown to have a natural precedent and a genetic basis.• aberrant behavior• You figure you've got a handle on all but the most aberrant human behaviour.• Now, this tree is aberrant in that it has two trunks.• The younger the age-group among the children found attractive, the more aberrant the impulse must be regarded.Origin aberrant (1500-1600) Latin present participle of aberrare, from ab- “away” + errare “to wander” 