Un‐bri″dled (?), a. [Pref. un- not + bridled.] Loosed from the bridle, or as from the bridle; hence, unrestrained; licentious; violent; as, unbridled passions. “Unbridled boldness.” B. Jonson.
Lands deluged by unbridled floods. Wordsworth.
— Un‐bri″dled‐ness, n.Abp. Leighton.