SLIPPERY

adj. 1 slick, sleek, slimy, icy, glassy, smooth, greasy, oily, lubricated, Colloq skiddy Be careful! Those stairs can be slippery when they're wet 2 evasive, devious, shifty, unreliable, undependable, questionable, untrustworthy, dishonest, treacherous, disloyal, perfidious, slick, crafty, sly, foxy, cunning, tricky, sneaky, false, reptilian, faithless, Colloq shady I have dealt with some very slippery characters over the years, but this one is downright evil