unnatural (
http://definr.com/unnatural)
adj 1: not in accordance with or determined by nature; contrary to
nature; "an unnatural death"; "the child's unnatural
interest in death" [ant:
natural]
2: speaking or behaving in an artificial way to make an
impression [syn:
affected] [ant:
unaffected]
3: distorted and unnatural in shape or size; abnormal and
hideous; "tales of grotesque serpents eight fathoms long
that churned the seas"; "twisted into monstrous shapes"
[syn:
grotesque,
monstrous]