ding-dong Antonyms

mental giant mahatma intelligentsia brainiac boffin polymath know-it-all rocket scientist mastermind fundi einstein sobersides wiz whizz maven man of letters ninja brains focused person brilliant person critical thinker wise person wiseman walking encyclopedia walking dictionary idiot savant highbrow clever clogs bright spark brainbox alpha geek egghead wizard whiz inventor intellectualist intellectual intellect explicator expert exegete don comradeship brain brahmin Bluestocking artist academician maestro master