definitions

lightheaded

[ lahyt-hed-id ]
/ ˈlaɪtˈhɛd ɪd /
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SEE MORE SYNONYMS FOR lightheaded ON THESAURUS.COM

adjective

giddy, dizzy, or delirious: After two drinks Pat began to feel lightheaded.
having or showing a frivolous or volatile disposition; thoughtless: lightheaded persons.

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RELATED WORDS

changeable, delirious, dizzy, empty, fickle, flighty, flippant, foolish, frivolous, giddy, harebrained, hazy, punchy, rocky, scatterbrained, shallow, superficial, swimming, tired, trifling

Nearby words

lighterage, lighterman, lightface, lightfast, lightfoot, lightheaded, lightheadedly, lighthearted, lightheartedly, lighthouse, lighthouse clock

Origin of lightheaded

First recorded in 1530–40; light2 + head + -ed3
Related formslight·head·ed·ly, adverblight·head·ed·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for light-headed

British Dictionary definitions for light-headed

light-headed

adjective

frivolous in disposition or behaviour
giddy; feeling faint or slightly delirious
Derived Formslight-headedly, adverblight-headedness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for light-headed

light-headed

adj.

also lightheaded, "dizzy," 1530s; from light (adj.1) + head (n.). Related: Light-headedness.

Online Etymology Dictionary, © 2010 Douglas Harper