• synonyms


  1. having or proved by a certificate: a certified representative.
  2. guaranteed; reliably endorsed: a certified check.
  3. legally declared insane.
  4. committed to a mental institution.
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Origin of certified

First recorded in 1605–15; certify + -ed2
Related formsnon·cer·ti·fied, adjectiveun·cer·ti·fied, adjectivewell-cer·ti·fied, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for uncertified

Historical Examples

  • Such figures, uncertified, would challenge the credulity of the uninitiated.

    The New Education

    Scott Nearing

  • But once I was a certified lunatic, and have never been uncertified since.

  • In the ultrasimple universe imagined the reference is uncertified.

  • The uncertified purifier is to be put in chains, his clothes taken from him, and his head cut off.

  • He did not burst upon the public with an uncertified demand to be accepted as Divine.

British Dictionary definitions for uncertified


  1. holding or guaranteed by a certificate
  2. endorsed or guaranteeda certified cheque
  3. (of a person) declared legally insane
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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