WordNet sense 1 (taken as your right without justification):

arrogated

WordNet sense 2 (having possession gained especially by force or effort):

taken

WordNet sense 3 (adopted in order to deceive):

fictitious, fictive, sham, false, pretended, put on

WordNet sense 4 (not genuine; imitating something superior):

counterfeit, imitative

WordNet sense 5 (accepted as real or true without proof):

assumptive

WordNet sense 6 (recognized or made known or admitted):

acknowledged