sham in WordNet English dictionary

1. make believe with the intent to deceive
   "He feigned that he was ill"; "He shammed a headache"
   feign  sham  pretend  affect  dissemble 
   
2. make a pretence of
   "She assumed indifference, even though she was seething with anger"; "he feigned sleep"
   simulate  assume  sham  feign 
   

1. adopted in order to deceive
   "an assumed name"; "an assumed cheerfulness"; "a fictitious address"; "fictive sympathy"; "a pretended interest"; "a put-on childish voice"; "sham modesty"
   assumed  false  fictitious  fictive  pretended  put on  sham 
   

1. something that is a counterfeit; not what it seems to be
   fake  sham  postiche 
   
2. a person who makes deceitful pretenses
   imposter  impostor  pretender  fake  faker  fraud  sham  shammer  pseudo  pseud  role player