D defs.my
Entry 1 sense Webster, 1913

Unnatural

/ən-năch'-ẽr-əl/ · Un·nat·u·ral · IPA /ʌnˈnæt͡ʃ.(ə.)ɹəl/
01 a. Not natural; contrary, or not conforming, to the order of nature; being without natural traits; as, unnatural crimes.
  1. 1.
    Not natural; contrary, or not conforming, to the order of nature; being without natural traits; as, unnatural crimes.
Syn. See Factitious.