Giddy1. (a.) Silly; dizzy; lightheaded; having in the head a sensation of whirling or reeling about; having lost the power of preserving the balance of the body, and therefore wavering and inclined to fall; lightheaded; dizzy.
2. (superl.) Promoting or inducing giddiness; as, a giddy height; a giddy precipice.
3. (superl.) Bewildering on account of rapid turning; running round with celerity; gyratory; whirling.
4. (superl.) Characterized by inconstancy; unstable; changeable; fickle; wild; thoughtless; heedless.
5. (v. i.) To reel; to whirl.
6. (v. t.) To make dizzy or unsteady.
Thesaurus Entries
addled, adrift, afloat, alternating, amorphous, babbling, beery, bemused, besotted, blind drunk, brainless, capricious, changeable, changeful, crapulent, crapulous, delirious, desultory, deviable, dizzy, drenched, drunk, drunken, eccentric, empty-headed, erratic, faint, far-gone, fast and loose, featherbrained, featherheaded, fickle, fitful, flickering, flighty, flitting, fluctuating, flustered, fluttery, fou, freakish, fribble, fribbling, frivolous, full, gaga, gay, giddy-brained, giddy-headed, giddy-pated, giddy-witted, glorious, happy, harebrain, harebrained, impetuous, impulsive, in liquor, incoherent, inconsistent, inconstant, indecisive, inebriate, inebriated, inebrious, infirm, intoxicated, irregular, irresolute, irresponsible, jolly, light, light-headed, lightheaded, maudlin, mazy, mellow, mercurial, merry, moody, muddled, nappy, off, rambling, ranting, rattlebrained, rattleheaded, rattlepated, raving, reckless, reeling, restless, roving, scatterbrained, scramblebrained, shapeless, shatterbrained, shifting, shifty, shikker, shuffling, silly, skittish, sodden, sotted, spasmodic, spineless, swimming, thoughtless, tiddly, tipsy, turned around, unaccountable, uncertain, uncontrolled, undependable, under the influence, undisciplined, unfixed, unpredictable, unreliable, unrestrained, unsettled, unstable, unstable as water, unstaid, unsteadfast, unsteady, vacillating, vagrant, variable, vertiginous, vicissitudinary, vicissitudinous, volatile, wandering, wanton, wavering, wavery, wavy, wayward, whimsical, wishy-washy, witless, woozy, yeasty