The Collaborative International Dictionary
Reinless
Reinless \Rein"less\ (r?n"l?s), a. Not having, or not governed by, reins; hence, not checked or restrained.
Wiktionary
reinless
a. 1 Not having, or not governed by, reins. 2 (context by extension English) Not checked or restrained.
Usage examples of "reinless".
Abroad by reinless steeds, even so the world: Yea, even as chariot-dust upon the air, It shall be sought and not found anywhere.
I saw both the ladies gaze with astonishment as I sent him up to the head of the reinless carriage horse.