'Dizziest' definitions:

Definition of 'Dizziest'

From: GCIDE

Dizzy \Diz"zy\ (d[i^]z"z[y^]), a. [Compar. Dizzier (d[i^]z"z[i^]*[~e]r); superl. Dizziest.] [OE. dusi, disi, desi, foolish, AS. dysig; akin to LG. d["u]sig dizzy, OD. deuzig, duyzig, OHG. tusig foolish, OFries. dusia to be dizzy; LG. dusel dizziness, duselig, dusselig, D. duizelig, dizzy, Dan. d["o]sig drowsy, slepy, d["o]se to make dull, drowsy, d["o]s dullness, drowsiness, and to AS. dw[=ae]s foolish, G. thor fool. [root]71. Cf. Daze, Doze.]
1. Having in the head a sensation of whirling, with a tendency to fall; vertiginous; giddy; hence, confused; indistinct. [1913 Webster]
Alas! his brain was dizzy. --Drayton. [1913 Webster]
2. Causing, or tending to cause, giddiness or vertigo. [1913 Webster]
To climb from the brink of Fleet Ditch by a dizzy ladder. --Macaulay. [1913 Webster]
3. Without distinct thought; unreflecting; thoughtless; heedless. "The dizzy multitude." --Milton. [1913 Webster]