Source : Webster's Revised Unabridged Dictionary (1913)

Sluttish \Slut"tish\, a.
   Like a slut; untidy; indecently negligent of cleanliness;
   disorderly; as, a sluttish woman.

         Why is thy lord so slutish, I thee pray. --Chaucer.

         An air of liberal, though sluttish, plenty, indicated
         the wealthy farmer.                      --Sir W.
                                                  Scott.
   -- {Slut"tish*ly}, adv. -- {Slut"tish*ness}, n.