Acute, Amphibian, Aquatic, Arch, Artful, Astute, Backstairs, Biped, Cagey, Canine, Cannibal, Canny, Carnivore, Cat, Catlike, Clandestine, Clever, Covert, Crafty, Cunning, Cute, Deceitful, Deep, Designing, Diplomatic, Foxy, Furtive, Gnawer, Herbivore, Ingenious, Insidious, Inventive, Invertebrate, Kit, Kitten, Kittenish, Kitty, Knowing, Mammal, Mammalian, Marsupial, Omnivore, Politic, Primate, Privy, Puss, Pussy, Pussycat, Quadruped, Quiet, Ready, Reptile, Resourceful, Rodent, Ruminant, Scavenger, Scheming, Serpentine, Sharp, Shifty, Shrewd, Skulking, Slick, Slinking, Slinky, Slippery, Sly, Smooth, Snaky, Sneaking, Sneaky, Stealthy, Strategic, Subtle, Supple, Surreptitious, Tabby, Tactical, Tigerish, Tomcat, Tricky, Undercover, Underground, Underhand, Unobtrusive, Vermin, Vertebrate, Vulpine, Wary, Wily