WordNet (r) 3.0 (2006):

self-styled
    adj 1: as claimed by and for yourself often without
           justification; "the self-styled `doctor' has no degree of
           any kind" [syn: self-styled, soi-disant]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "self-styled":
   affected, apocryphal, artificial, assumed, bastard, bogus,
   brummagem, byname, cognominal, colorable, colored, counterfeit,
   counterfeited, diminutive, distorted, dressed up, dummy,
   embellished, embroidered, epithetic, ersatz, factitious, fake,
   faked, falsified, feigned, fictitious, fictive, formal, garbled,
   honorific, hypocoristic, illegitimate, imitation, in name only,
   junky, make-believe, man-made, mock, nominal, nominative,
   perverted, phony, pinchbeck, pretended, professed, pseudo, put-on,
   quasi, queer, self-appointed, self-called, self-christened,
   self-proclaimed, sham, shoddy, simulated, so-called, soi-disant,
   spurious, supposititious, synthetic, tin, tinsel, titivated,
   titular, twisted, unauthentic, ungenuine, unnatural, unreal,
   warped, would-be