Verbs

(v)dizzymake dizzy or giddy“a dizzying pace”

Adjectives

(s)dizzy, giddy, woozy, vertiginoushaving 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”
(s)airheaded, dizzy, empty-headed, featherbrained, giddy, light-headed, lightheaded, sillylacking seriousness; given to frivolity“a dizzy blonde”, “light-headed teenagers”, “silly giggles”