featherbrained
Lacking serious thought
Featherbrained means silly, scatterbrained, or incapable of serious thought—as if one's head were filled with feathers rather than anything of substance.
The word typically describes someone frivolous or easily distracted: Her featherbrained sister forgot the tickets again.
Featherhead and featherbrain are the noun forms.
Frivolous or absurd
- daftSilly or foolish
- dumbWitless or mute
- idioticExtremely lacking intelligence
- witlessLacking intelligence or sense
brainless · dimwitted · simpleminded · dense · dopey · doltish · empty-headed · gormless
Erratic and unreliable
- giddyDizzy or excitedly silly
- lightheadedFaint and unsteady feeling
- whimsicalPlayfully fanciful or erratic
- capriciousSubject to sudden changes
flippant · superficial · trivial · shallow · nonserious · frothy · unserious · lighthearted
Failing to retain information
- distractedUnable to concentrate
- disorganizedLacking systematic arrangement
- unfocusedWithout clear direction
- spaceyAbsent-minded, unfocused
flustered · preoccupied · confused · bewildered · inattentive · oblivious · dreamy · neglectful
silly
Frivolous or absurd
witless · brainless · dimwitted · simpleminded · dense · dopey · doltish · empty-headed · gormless · fatuous
flighty
Erratic and unreliable
- giddyDizzy or excitedly silly
- lightheadedFaint and unsteady feeling
- whimsicalPlayfully fanciful or erratic
capricious · flippant · superficial · trivial · shallow · nonserious · frothy · unserious · lighthearted · skittish
forgetful
Failing to retain information
- distractedUnable to concentrate
- disorganizedLacking systematic arrangement
- unfocusedWithout clear direction
spacey · flustered · preoccupied · confused · bewildered · inattentive · oblivious · dreamy · neglectful · shambolic
featherbrainedwise
Showing good judgment
intelligent · brilliant · sharp · clever · brainy
featherbrainedlevelheaded
Calm and judicious
level-headed · sensible · practical · grounded · down-to-earth