unnatural

Not in accordance with what usually occurs in nature.

Not included in nature; artificial.

Deviating from a behavioral or social norm.

Brutal or unfeeling.

Stilted, affected, or awkward.

Not natural; contrary to nature; monstrous; especially, contrary to the natural feelings: as, unnatural offenses.

Acting without the affections of our common nature; not having the feelings natural to humanity; being without natural instincts: as, an unnatural parent.

Not in conformity to nature; not agreeable to the real character of persons or things; not representing nature; forced; strained; affected; artificial: as, unnatural images or descriptions.