The Collaborative International Dictionary of English v.0.48:

Fictitious \Fic*ti"tious\, a. [L. fictitius. See Fiction.]
   Feigned; imaginary; not real; fabulous; counterfeit; false;
   not genuine; as, fictitious fame.
   [1913 Webster]

         The human persons are as fictitious as the airy ones.
                                                  --Pope.
   -- Fic*ti"tious*ly, adv. -- Fic*ti"tious*ness, n.
   [1913 Webster]