featherbrained Synonyms

giddy light-headed lightheaded silly dizzy empty-headed airheaded harebrained addlebrained scatty witless vertiginous trivial goofy bird-brained with a memory like a sieve with a mind like a sieve woozy unprofound scatterbrained rattlepated rattlebrained gaga ditzy dippy birdbrained thoughtless superficial frothy frivolous foolish flighty fickle faint capricious brainless addle-pated addle-brained idiotic inane stupid skittish simple shallow reeling puerile mindless light-minded light addle-headed