dissimulation /(?)/

dis·sim·u·la·tion

dissimulation

n.
  1. The act of dissembling; a hiding under a false appearance; concealment by feigning; false pretension; hypocrisy.
    Let love be without dissimulation.
    — Rom. xii. 9.
    Dissimulation . . . when a man lets fall signs and arguments that he is not that he is.
    Simulation is a pretense of what is not, and dissimulation a concealment of what is.