loony Antonyms

highly educated wise valid stable sound sober smart sensible sapient sane sagacious well-advised all there commonsensical able to reason clearly able to think clearly awfully clever as sharp as a needle of sound mind well-founded well-balanced in one's right mind enlightened compos mentis ruminative right-minded right discerning coherent clever clear-headed canny brilliant bright brainy balanced astute educated erudite genius reasonable rational prudent normal lucid logical judicious intelligent healthy good