phony
     adj : fraudulent; having a misleading appearance [syn: {bogus}, {fake},
            {phoney}, {bastard}]
     n : a person who professes beliefs and opinions that he does not
         hold [syn: {hypocrite}, {dissembler}, {phoney}, {pretender}]
     [also: {phoniest}, {phonier}]
Source: WordNet® 2.0