Underhanded

Un·der·hand·ed

Underhanded

a.
  1. Underhand; clandestine.
  2. Insufficiently provided with hands or workers; short-handed; sparsely populated; obsolete in this sense, short-handed or understaffed being the preferrred term. obsolete
    Norway . . . might defy the world, . . . but it is much underhanded now.