lightheaded

light·head·ed  (lthdd)

adj.

1. Faint, giddy, or delirious: lightheaded with wine.

2. Given to frivolity; silly.

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lightheaded·ly adv.

lightheaded·ness n.

Thesaurus

Adj.	1.	lightheaded - 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" light-headed, swooning, faint, light ill, sick - affected by an impairment of normal physical or mental function; "ill from the monotony of his suffering"
	2.	lightheaded - lacking seriousness; given to frivolity; "a dizzy blonde"; "light-headed teenagers"; "silly giggles" empty-headed, featherbrained, airheaded, dizzy, giddy, light-headed, silly frivolous - not serious in content or attitude or behavior; "a frivolous novel"; "a frivolous remark"; "a frivolous young woman"