giddy
adj 1: having or causing a whirling sensation; liable to falling;
"had a dizzy spell"; "a dizzy pinnacle"; "had a
headache and felt giddy"; "a giddy precipice";
"feeling woozy from the blow on his head"; "a
vertiginous climb up the face of the cliff" [syn: dizzy,
woozy, vertiginous]
2: lacking seriousness; given to frivolity; "a dizzy blonde";
"light-headed teenagers"; "silly giggles" [syn: airheaded,
dizzy, empty-headed, featherbrained, light-headed,
lightheaded, silly]
[also: giddied, giddiest, giddier]