Synonyms and related words :
bright, conceptive, conceptual, controlled, discursive, firm-minded, forward, ideational, importunate, independent, intellectual, intelligent, knowing, noetic, not so dumb, pushy, rational, reasonable, sane, self-asserting, self-assertive, self-controlled, self-expressive, self-possessed, self-restrained, sensible, sophic, strong-willed, understanding