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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

"Today’s young women know that neurotic isn’t cute. Cute isn’t cute. Neither is flustered, madcap, zany, flighty, flaky, harried or hapless - all adjectives that apply to Bridget."

From BBC • Oct. 14, 2024

Tristán, vain and flighty, can hardly concentrate on anything but his career.

From Los Angeles Times • Jul. 17, 2023

“It isn’t Nigeria, but it’s close. I know celebrities can be flighty but she seems to be doing good work.”

From "Americanah" by Chimamanda Ngozi Adichie