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Definition of Lightheaded
1. Adjective. Weak and likely to lose consciousness. "Light-headed from lack of sleep"
Exact synonyms: Faint, Light, Light-headed, Swooning
Similar to: Ill, Sick
Derivative terms: Faint, Faintness, Lightheadedness
Similar to: Ill, Sick
Derivative terms: Faint, Faintness, Lightheadedness
2. Adjective. Lacking seriousness; given to frivolity. "Silly giggles"
Exact synonyms: Airheaded, Dizzy, Empty-headed, Featherbrained, Giddy, Light-headed, Silly
Similar to: Frivolous
Derivative terms: Giddiness, Lightheadedness, Silliness
Similar to: Frivolous
Derivative terms: Giddiness, Lightheadedness, Silliness
Definition of Lightheaded
1. a. Disordered in the head; dizzy; delirious.