light-headed Meaning, Definition & Usage

  1. adjective satellite weak and likely to lose consciousness
    light; swooning; faint; lightheaded.
    • suddenly felt faint from the pain
    • was sick and faint from hunger
    • felt light in the head
    • a swooning fit
    • light-headed with wine
    • light-headed from lack of sleep
  2. adjective satellite lacking seriousness; given to frivolity
    giddy; featherbrained; airheaded; lightheaded; empty-headed; dizzy; silly.
    • a dizzy blonde
    • light-headed teenagers
    • silly giggles

WordNet

Light"-head`ed adjective
Definitions
  1. Disordered in the head; dilirious. Walpole.
  2. Thoughtless; heedless; volatile; unsteady; fickle; loose. "Light-headed, weak men." Clarendon. -- Light"-head`ed*ness, n.

Webster 1913