lightheaded Meaning, Definition & Usage

1. adjective satellite weak and likely to lose consciousness
   light; swooning; faint; light-headed.
   
   • 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; empty-headed; dizzy; light-headed; silly.
   
   • a dizzy blonde
   • light-headed teenagers
   • silly giggles

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