Acute, Advised, Aimed, Alive, Apprehending, Apprehensive, Arch, Artful, Astute, Awake, Aware, Blase, Brainy, Bright, Brilliant, Cagey, Calculated, Calculating, Canny, Clever, Cognizant, Comprehending, Smart, Smooth, Snaky, Sneaky, Sophisticate, Sophisticated, Stealthy, Strategic, Studied, Subtle, Supple, Tactical, Teleological, Tricky, Tried, Understanding, Veteran, Vigilant, Voluntary, Vulpine, Wary, Watchful, Wily, Wise, Witting, Worldly, Conceptual, Conscious, Considered, Conspiratorial, Contemplated, Conversant, Cosmopolitan, Crafty, Cunning, Cute, Deceitful, Deep, Deliberate, Deliberated, Designed, Designing, Devious, Diplomatic, Discerning, Discursive, Disenchanted, Disillusioned, Eloquent, Envisaged, Envisioned, Experienced, Expert, Expressive, Feline, Foxy, Gnostic, Ingenious, Insidious, Insightful, Intellectual, Intelligent, Intended, Intentional, Inventive, Knowledgeable, Learned, Mature, Matured, Meaningful, Meant, Meditated, Mindful, Observant, Old, Omniscient, Perceptive, Percipient, Perspicacious, Planned, Politic, Prehensile, Private, Profound, Projected, Proposed, Purposed, Purposeful, Purposive, Qualified, Quick, Rational, Ready, Reasonable, Resourceful, Ripe, Ripened, Sagacious, Sage, Sane, Sapient, Scheming, Seasoned, Secret, Sensible, Sentient, Serpentine, Sharp, Shifty, Shrewd, Significant, Slick, Slippery, Sly