unrecognizable

adj

1. (British, English, Oxford, US)That cannot be recognized, especially because of substantial changes.

   “He’s forced to travel back to 1969 to prevent an evil alien (a shockingly effective, nearly unrecognizable Jemaine Clement of Flight Of The Conchords, playing sort of a psychotic extraterrestrial-biker serial killer) from destroying the world by killing Brolin. Smith is aided in his quest by an elfin, time-jumping alien with psychic powers played by another Coen brothers veteran, A Serious Man star Michael Stuhlbarg.”