"Easily deceived" can be reworded as simply "gullible". If someone is "gullible" or "easily deceived", they are also "naive".


A dupe is a man easily tricked

"A credulous man; a man easily tricked."


There are also numerous informal or slang words for the person who is gullible or easily deceived including

  • patsy
  • mark
  • rube
  • sucker
  • dupe
  • chump
  • fall guy
  • gull
  • soft touch
  • mug
  • fool