unnatural: Meaning and Definition of

un•nat•u•ral

1. contrary to the laws or course of nature.
2. at variance with the character or nature of a person, animal, or plant.
3. at variance with what is normal or to be expected: the unnatural atmosphere of the place.
4. lacking human qualities or sympathies; monstrous; inhuman: an obsessive and unnatural hatred.
5. not genuine or spontaneous; artificial or contrived: a stiff, unnatural manner.
6. lacking a valid or natural claim; illegitimate.