Definitions of light-headed
  1. adjective
    weak and likely to lose consciousness
    synonyms: faint, light, lightheaded, swooning
    ill, sick
    affected by an impairment of normal physical or mental function
  2. adjective
    lacking seriousness; given to frivolity
    light-headed teenagers”
    synonyms: airheaded, dizzy, empty-headed, featherbrained, giddy, lightheaded, silly
    not serious in content or attitude or behavior
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