The Oxford Thesaurus An A-Z Dictionary of Synonyms - so-called adj.

1) styled, self-styled, designated, soi-disant, called, professed: They found themselves fighting for Kolchak, the so-called supreme ruler of all the Russias. 2) alleged, pretended, supposed, ostensible; misnamed, misdesignated; suspect: She bought it through the so-called Honest Used Car Dealers Association.