The Collaborative International Dictionary
Feather-headed \Feath"er-head`ed\, a.
Giddy; frivolous; foolish. [Colloq.]
--G. Eliot.
Wiktionary
a. (context colloquial English) giddy; frivolous; foolish
Usage examples of "feather-headed".
He was still a rake, and what a swath he would cut through the ton with his elegant new dignity and his romantic limp to remind the feather-headed chits of his heroism.
The blue larkspur flourished beside scarlet gladioli, feather-headed spirea, and hardy fuchsia.
He had pictured a distinct and perfectly rational and feasible improvement upon constitutional monarchy, but he was too feather-headed to know it, or care anything about it, either.
All you know is what you've read, written by biased newspeople, and what you've been force-fed by feather-headed college professors who are so far out of touch with reality they should be forced to wear earphones, plugged into the vibrations of history.