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Definitions

flighty

[flahy-tee] / ˈflaɪ ti /
ADJECTIVE
fickle, irresponsible
Synonyms
STRONGEST
capricious giddy unstable
WEAK
airheaded birdbrained bubbleheaded changeable dingbat dingdong dizzy effervescent empty-headed featherbrained frivolous gaga harebrained impetuous impulsive inconstant lightheaded lively mercurial scatterbrained silly thoughtless twit unbalanced unsteady volatile whimsical wild
Antonyms
STRONGEST
sensible steady
WEAK
responsible

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.

He wasn’t a crazed football fan or a flighty 30-something bachelor, but an outdoorsman who loved mountain biking away from the city.

From The Wall Street Journal • Feb. 1, 2026

Undertaking a new challenge every few years can show employers you’re ambitious, but not flighty.

From MarketWatch • Dec. 22, 2025

When she returned for Season 3, she was slightly more magnanimous and less flighty, trying her best to achieve harmony with the rest of the cast.

From Salon • May 20, 2025

Wrens "are very flighty," he says with a laugh.

From BBC • Aug. 4, 2024

And lo and behold, when Maggie was born, Sharon the Star became a doting, if somewhat flighty, grandmother.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.