light-minded Synonyms

flippant dappy lightweight dopey featherbrained dotty scatty unsteady whimsical volatile harebrained half-baked goofy silly as a goose as silly as a goose scatterbrained pea-brained feather-brained ditzy dippy birdbrained unstable thoughtless superficial foolish foolhardy flighty erratic dizzy careless capricious batty frivolous giddy irresponsible skittish silly reckless rash puerile nutty mad light absurd