lightheadedness

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a reeling sensation;
a feeling that you are about to fall
• Syn:
dizziness, giddiness, vertigo
• Derivationally related forms:
vertiginous (for: vertigo), lightheaded, giddy (for: giddiness), dizzy (for: dizziness)
• Hypernyms:
symptom
2. a frivolous lack of prudence
• Derivationally related forms:
lightheaded
• Hypernyms:
heedlessness, mindlessness, rashness