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Synonyms

unnatural

American  
[uhn-nach-er-uhl, -nach-ruhl] / ʌnˈnætʃ ər əl, -ˈnætʃ rəl /

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.

    Synonyms:
    aberrant, irregular
  4. lacking human qualities or sympathies; monstrous; inhuman.

    an obsessive and unnatural hatred.

    Synonyms:
    brutal, heartless
  5. not genuine or spontaneous; artificial or contrived.

    a stiff, unnatural manner.

  6. Obsolete. lacking a valid or natural claim; illegitimate.


unnatural British  
/ -ˈnætʃrəl, ʌnˈnætʃərəl /

adjective

  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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • unnaturally adverb
  • unnaturalness noun

Etymology

Origin of unnatural

late Middle English word dating back to 1375–1425; un- 1, natural

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It felt very unnatural for me, to think: 'Hold on, I need to slow down'."

From BBC

Still, it would be hard to object to anyone pursuing initiatives to get unnatural additives out of the food supply or trying to ensure that the country is eating well.

From Salon

Look no further than iconic horror films like “Cloverfield” or “The Ring,” where glitches signify the presence of something unnatural and malicious.

From The Wall Street Journal

Mom asked in a shrill, unnatural voice Jonah was sure he’d never heard her use before.

From Literature

Across the state, the annual cash payments were not associated with an increase in serious traumatic injuries or deaths from unnatural causes in the short term.

From Science Daily