(1):
(superl.) Promoting or inducing giddiness; as, a giddy height; a giddy precipice.
(2):
(superl.) Having in the head a sensation of whirling or reeling about; having lost the power of preserving the balance of the body, and therefore wavering and inclined to fall; lightheaded; dizzy.
(3):
(superl.) Bewildering on account of rapid turning; running round with celerity; gyratory; whirling.
(4):
(superl.) Characterized by inconstancy; unstable; changeable; fickle; wild; thoughtless; heedless.
(5):
(v. i.) To reel; to whirl.
(6):
(v. t.) To make dizzy or unsteady.