Dictionary.com
Thesaurus.com

flyaway

American  
[flahy-uh-wey] / ˈflaɪ əˌweɪ /

adjective

  1. fluttering or streaming in the wind; windblown.

    flyaway hair.

  2. flighty; frivolous; giddy.

  3. ready for flight.

    flyaway aircraft.
flyaway British  
/ ˈflaɪəˌweɪ /

adjective

  1. (of hair or clothing) loose and fluttering

  2. frivolous or flighty; 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

noun

  1. a person who is frivolous or flighty

"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

Etymology

Origin of flyaway

First recorded in 1765–75; adj. use of verb phrase fly away

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.