empty-headed

• emptyheaded

empty +‎ headed; compare airheaded

empty-headed (comparative more empty-headed, superlative most empty-headed)

1. Silly and lacking sense or discretion; featherbrained or scatterbrained.
   • 1977 April 30, Steve Blevins, “A Sack-full of Films”, in Gay Community News, page 11:

     Never has a group of actors uttered as many mealy-mouthed platitudes as you'll find bouncing off the walls of this empty-headed film.

   • 2021 December 7, Jesse Hassenger, “Leonardo DiCaprio and Jennifer Lawrence cope with disaster in the despairing satire Don’t Look Up”, in AV Club‎:

     Hill, though, captures the entitled, empty-headed viciousness of the wealthy elites the film tries to eviscerate.

• pea-brain

• vacuous