Source : Webster's Revised Unabridged Dictionary (1913)

Whitewash \White"wash`\, v. t. [imp. & p. p. {Whitewashed}; p.
   pr. & vb. n. {Whitewashing}.]
   1. To apply a white liquid composition to; to whiten with
      whitewash.

   2. To make white; to give a fair external appearance to; to
      clear from imputations or disgrace; hence, to clear (a
      bankrupt) from obligation to pay debts.

Source : WordNet®

whitewashed
     adj : coated with whitewash; "miles of whitewashed fences"