un·nat·u·ral

[uhn-nach-er-uhl, -nach-ruhl]
adjective
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.
Obsolete. lacking a valid or natural claim; illegitimate.

Origin:
1375–1425; late Middle English; see un-1, natural

un·nat·u·ral·ly, adverb
un·nat·u·ral·ness, noun


3. irregular, aberrant. 4. heartless, brutal.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To unnatural
00:10
Unnatural is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
Collins
World English Dictionary
unnatural (ʌnˈnætʃərəl, -ˈnætʃrəl) [Click for IPA pronunciation guide]
 
adj
1.  contrary to nature; abnormal
2.  not in accordance with accepted standards of behaviour or right and wrong: unnatural love
3.  uncanny; supernatural: unnatural phenomena
4.  affected or forced: an unnatural manner
5.  inhuman or monstrous; wicked: an unnatural crime
6.  obsolete illegitimate
 
un'naturally
 
adv
 
un'naturalness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

unnatural
early 15c., "not in accord with physical nature," from un- (1) "not" + natural. Meaning "artificial" is attested from 1746; that of "at variance with moral standards" is from 1520s.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
There is a false belief that natural selection and unnatural selection work by
  different processes.
Some birds-blackbirds and nightingales, among others-sing at unnatural hours in
  the presence of artificial light.
So it takes an almost unnatural objectivity to suggest that our ectoparasites
  can also be fascinating.
They have reengineered it so that it now can use these other amino acids-they
  are called unnatural amino acids-to build proteins.
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