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Synonyms

giddy

American  
[gid-ee] / ˈgɪd i /

adjective

giddier, giddiest
  1. affected with vertigo; dizzy.

    Synonyms:
    vertiginous, lightheaded
  2. attended with or causing dizziness.

    a giddy climb.

  3. frivolous and lighthearted; flighty.

    a giddy young person.

    Synonyms:
    vacillating, inconstant, fickle, mercurial, volatile, unstable

verb (used with or without object)

giddies, present (3rd person singular) giddied, past participle, past giddying present participle
  1. to make or become giddy.

giddy British  
/ ˈɡɪdɪ /

adjective

  1. affected with a reeling sensation and feeling as if about to fall; dizzy

  2. causing or tending to cause vertigo

  3. impulsive; scatterbrained

  4. an exclamation of surprise

"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

verb

  1. to make or become giddy

"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

Other Word Forms

Derived Forms

Etymology

Origin of giddy

First recorded before 1000; Middle English gidy, Old English gidig “mad,” variant of gydig (unrecorded), derivative of god God, presumably originally “possessed by a divine being”

Explanation

If you've ever spun in circles until you fell to the ground laughing, you know how it feels to be giddy. This adjective can mean dizzy, elated, or — as in the spinning around example — a lightheaded, lighthearted combination of the two. The hackneyed phrase "giddy as a schoolgirl" calls forth the image of a kid giggling with her friends over some adolescent foolishness. Giddy has been used to describe someone incapable of serious thought or easily excited as far back as the 16th century. Given that, in modern usage, giddy describes someone silly and frivolous, it's interesting to know that the Old English source for this word has a slightly darker tinge: gidig means "insane" or "god-possessed."

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Vocabulary lists containing giddy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Reynoso said the betting "stimulates many senses" for the animals on top of providing entertainment for an audience giddy with excitement ahead of the world's biggest football bonanza.

From Barron's • Jun. 6, 2026

The mix of worlds is giddy, begging for splendor.

From Los Angeles Times • May 21, 2026

His performance of the track marked the giddy peak of the Super Bowl halftime show last year for more than 133 million viewers.

From The Wall Street Journal • May 13, 2026

Bush pushed the idea during a brief, giddy window between the financial crisis of 2000-’03 and the one of 2007-’09.

From MarketWatch • May 13, 2026

Its plastic wheels scrape the concrete, and the sound makes me giddy.

From "Water for Elephants" by Sara Gruen

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