unnatural

adjective

1
speaking or behaving in an artificial way to make an impression
2
not in accordance with or determined by nature; contrary to nature
an unnatural death
the child's unnatural interest in death
3
not normal; not typical or usual or regular or conforming to a norm
abnormal powers of concentration
abnormal amounts of rain

Also useful for “unnatural”:Unscrambler— Rearrange the letters in “unnatural”