'Fleetest' definitions:

Definition of 'Fleetest'

From: GCIDE

Fleet \Fleet\, a. [Compar. Fleeter; superl. Fleetest.] [Cf. Icel. flj[=o]tr quick. See Fleet, v. i.]
1. Swift in motion; moving with velocity; light and quick in going from place to place; nimble. [1913 Webster]
In mail their horses clad, yet fleet and strong. --Milton. [1913 Webster]
2. Light; superficially thin; not penetrating deep, as soil. [Prov. Eng.] --Mortimer. [1913 Webster]