What does the word unnatural mean?

Usage examples for unnatural

  1. It had not seemed unnatural. – The World For Sale, Volume 2. by Gilbert Parker
  2. L. Since she won't be an unnatural daughter, she is to leave the part to you. – More Bywords by Charlotte M. Yonge
  3. He answered with only a strange unnatural laugh through his teeth. – Paul Faber, Surgeon by George MacDonald