Unbridled
Pronunciation : Un*bri"dled
Part of Speech : a.
Etymology : [Pref. un- not + bridled.]
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913