enlightened, clear-sighted, lettered, penetrating, penetrative, careful, significant, wise to, savvy, acute, reasonable, crafty, keen, cagey, designed, slick, discriminating, well-educated, sage, conditioned, well-read, cunning, meaningful, subtile, judicious, deliberate, intended, subtle, sapient, aware, expressive, intimate, wilful, ability, willful, intentional
intelligent (part of speech: adjective)
comprehending, profound, intelligent, erudite, astute, knowledgeable, gifted, encyclopedic, capable, canny, sophisticated, sharp, perspicacious, worldly, bright, clever, genius, cogent, sagacious, wise, smart, brilliant, brainy, intellectual
knowing (part of speech: verb)
- If the pole should get away from us, there's no knowing what it would do. - "The Doers", William John Hopkins.
- But where ye doubt, the truth not knowing. - "A Select Collection of Old English Plays, Volume I.", R. Dodsley.
- " You are very kind," repeated she, scarcely knowing what she said. - "Janet's Love and Service", Margaret M Robertson.