From WordNet (r) 3.0 (2006):
dizzy
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, giddy, woozy,
vertiginous]
2: lacking seriousness; given to frivolity; "a dizzy blonde";
"light-headed teenagers"; "silly giggles" [syn: airheaded,
dizzy, empty-headed, featherbrained, giddy, light-
headed, lightheaded, silly]
v 1: make dizzy or giddy; "a dizzying pace"