Source : Webster's Revised Unabridged Dictionary (1913)

Dissemblance \Dis*sem"blance\, n. [Cf. F. dissemblance. See
   {Dissemble}.]
   Want of resemblance; dissimilitude. [R.] --Osborne.

Dissemblance \Dis*sem"blance\, n. [Dissemble + -ance.]
   The act or art of dissembling; dissimulation. [Obs.]