Synonyms of giddy

1 Syllable
daft, wild
2 Syllables
dizzier, fickle, ditsy, wiggly, dafter, dingdong, skittish, ditzy, daftest, blinded, tippier, tippy, dizzy, punchy, thoughtless, woozy, impish, qualmy, swimming, flighty, swimmy, whirling, flightier, reeling, heedless, pixieish, flightiest, brainless, gaga, reckless
3 Syllables
frivolous, light-minded, nonserious, erratic, airbrained, birdbrained, unstable, inconstant, capricious, tottery, unsettled, lightheaded, tottering, flustered, whimsical, unsteady, slaphappy, changeful, careless, changeable, bemused
4 Syllables
volatile, empty-headed, featherbrained, agitable, vertiginous, hoity-toity, unbalanced, alarmable, vacillating, harebrained, harum-scarum, bubbleheaded, uncareful, bewildered, scatterbrained
5 Syllables
irresponsible, irresolute