a. Also 5 brydelesse, brydiless, 6 brideles. [f. BRIDLE sb. + -LESS.] Without a bridle (said of the steed or rider); fig. unbridled, unchecked, unrestrained.
1406. Occleve, Misrule, 78. Foorth ther with he renneth brydiless.
1555. Philpot, Apol., in Strype, Eccl. Mem., III. II. App. xlviii. 153. Ashamed of their brideles, blasphemous tongues.
1802. Southey, Thalaba, VI. Away went the bridleless steed.
1878. Bosw. Smith, Carthage, 216. The bridleless Numidian cavalry.