形容词

1. 反常的；异常的；不规则的
Someone or something that is abnormal is unusual, especially in a way that is worrying.

1. much greater than the normal

e.g. abnormal profits
abnormal ambition

2. not normal
not typical or usual or regular or conforming to a norm

e.g. abnormal powers of concentration
abnormal amounts of rain
abnormal circumstances
an abnormal interest in food

Synonym: unnatural

3. departing from the normal in e.g. intelligence and development

e.g. they were heartbroken when they learned their child was abnormal
an abnormal personality