lightheadedness

Noun lightheadedness has 2 senses

• lightheadedness(n = noun.state) dizziness, giddiness, vertigo - a reeling sensation; a feeling that you are about to fall;
is a kind of symptom
Derived form adjective lightheaded₁

• lightheadedness(n = noun.attribute) - a frivolous lack of prudence;
is a kind of heedlessness, mindlessness, rashness
Derived form adjective lightheaded₂