What's the opposite of "authenticator"?

An authenticator is:

"a person or thing that authenticates."

What do you call the person who is being authenticated? Assuming the use case where a person authenticates another person.

  • 2
    I'd say the opposite of authenticator is repudiator or invalidator. I agree with Jeremy that authenticatee is the logical choice for the word you want.
    – user21497
    Commented Oct 29, 2012 at 4:00

1 Answer 1


I don't believe there is an official word for that, but I'd have coined "authenticatee" (compare "employee": a person who is employed). Google search reveals that Oracle uses "authenticatee" in its documentation. You could probably get by with this in technical documentation, as I suspect the intent would be understood. Otherwise I'd suggest "authenticated person" or "candidate for authentication" (depending on whether the authentication is complete or pending).

  • Thanks. I thought of authenticatee before but couldn't find it in any official dictionary. Commented Oct 29, 2012 at 23:42

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