authenticity

noun

1. (uncountable, usually)The quality of being genuine or not corrupted from the original, of having the same origin (or attribution, commitment, intention, etc.) as claimed.

   “I hereby certify the authenticity of this copy.”

   “The authenticity of this painting is questionable.”

   “This is the dim path where […] a legitimate candidate of the working class will be hammered over and over in an authenticity battle with a campaign that weekly releases some “How do you do, fellow kids?” embarrassment and whose Instagram manager is a woman with her own HBO series.”

   “Urban Dictionary records at least 66 of the terms found by the present research, but as this dictionary liberally accepts words, definitions, and sample sentences based solely on the say-so of contributors, in the absence of corroboration from other sources the authenticity of some entries must remain dubious.”

2. (obsolete, uncountable, usually)The quality of being authentic (of established authority).