Unnatural
Pronunciation : Un*nat"u*ral
Part of Speech : a.
Definition : Defn: Not natural; contrary, or not conforming, to the order of nature; being without natural traits; as, unnatural crimes.
Syn. -- See Factitious. -- Un*nat"u*ral*ly, adv. -- Un*nat"u*ral*ness, n.
Source : Webster's Unabridged Dictionary, 1913