Source : Webster's Revised Unabridged Dictionary (1913)

Misunderstand \Mis*un`der*stand"\, v. t. [imp. & p. p.
   {Misunderstood}; p. pr. & vb. n. {Misunderstanding}.]
   To misconceive; to mistake; to miscomprehend; to take in a
   wrong sense.

Source : WordNet®

misunderstand
     v : interpret in the wrong way; "Don't misinterpret my comments
         as criticism"; "She misconstrued my remarks" [syn: {misconstrue},
          {misinterpret}, {misconceive}, {misapprehend}, {be amiss}]
     [also: {misunderstood}]