1. 偶发事件;非典型行为
An aberration is an incident or way of behaving that is not typical.
2. 不正常的怪人；异常行为
If someone considers a person or their behaviour to be an aberration, they think that they are strange and not socially acceptable.
1. an optical phenomenon resulting from the failure of a lens or mirror to produce a good image
Synonym: distortionoptical aberration
2. a disorder in one's mental state
3. a state or condition markedly different from the norm