acutely insightful and wise; "much too perspicacious to be taken in by such a spurious argument"; "observant and thoughtful, he was given to asking sagacious questions"; "a source of valuable insights and sapient advice to educators"
in fear or dread of possible evil or harm; "apprehensive for one's life"; "apprehensive of danger"
mentally upset over possible misfortune or danger etc; "apprehensive about her job"; "not used to a city and worried about small things"; "felt apprehensive about the consequences"
quick to understand; "a kind and apprehensive friend"- Nathaniel Hawthorne
marked by practical hardheaded intelligence; "a smart businessman"; "an astute tenant always reads the small print in a lease"; "he was too shrewd to go along with them on a road that could lead only to their overthrow"
knowing and perceiving; having awareness of surroundings and sensations and thoughts; "remained conscious during the operation"; "conscious of his faults"; "became conscious that he was being followed"
intentionally conceived; "a conscious effort to speak more slowly"; "a conscious policy"
bearing in mind; attentive to; "ever mindful of her health"; "mindful of his responsibilities"; "mindful of these criticisms, I shall attempt to justify my action"