harebrained Antonyms

practical serious severe shared shrewd smart sober solemn staid sensible sedate sapient proverbial prudent rational reactionary reasonable rife sagacious sane stereotyped textual buttoned-down no-nonsense standpat normative enlightened old-line sapiens traditionalistic brassbound ultraconservative tactful thoughtful time-honored valid vested widespread wise well-advised canonical according to the book accepted broody careful cautious circumspect clever communistic commutual