airheaded
air·hea·ded
adjective
1.
lacking seriousness; given to frivolity
- “a dizzy blonde”
- “light-headed teenagers”
- “silly giggles”
Origin
From air + headed; compare empty-headed.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.