形容词

1. 不自然的；诡异的；反常的
If you describe something as unnatural, you mean that it is strange and often frightening, because it is different from what you normally expect.

1. speaking or behaving in an artificial way to make an impression

Synonym: affected

2. not in accordance with or determined by nature
contrary to nature

e.g. an unnatural death
the child's unnatural interest in death

3. 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: abnormal