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.