Meaning & Definition of Lightheaded in English

1. Weak and likely to lose consciousness

• "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. Lacking seriousness

• Given to frivolity

• "A dizzy blonde"

• "Light-headed teenagers"

• "Silly giggles"