1) Acknowledged 2) Adopted 3) Apriori 4) Arrogated 5) Counterfeit 6) Fictive 7) Given 8) Pretended 9) Sham 10) Supposed 11) Tacit 12) Took on 13) Undertaken 14) Unspecified 15) Usurped 1) Acknowledged 2) Adopted in order to deceive 3) An assumed air of humility 4) Assumptive 5) Fictitious 6) Had supposed it was false 7) Kind of identity 8) Kind of name 9) Like a fictitious name 10) Like an alias 11) Pretended 12) Taken for granted 13) Took for granted 14) Took on 15) Took upon oneself 
• (a.) Supposed. • (a.) Pretended; hypocritical; make-believe; as, an assumed character. • (imp. & p. p.) of Assume
As·sumed' adjective 1. Supposed. 2. Pretended; hypocritical; make-believe; as, an assumed character. 
[adj] - taken as your right without justification 2. [adj] - adopted in order to deceive 3. [adj] - accepted as real or true without proof
assumed 1. Taken for granted. 2. Not genuine or true.
arrogated adjective taken as your right without justification; `was hearing evidence in an assumed capacity`; `Congress`s arrogated powers over domains hitherto belonging to the states`
adopted in order to deceive; fictitious; pretended; feigned: an assumed name; an assumed air of humility. · taken for granted; supposed: His assumed innocence proved untrue. · usurped.