IPA: /ʌnˈbɪtɪd/
KK: /ʌnˈbɪtɪd/
Not fitted with a piece of equipment that controls a horse's mouth, or not restrained or controlled.
The horse ran freely in the field, unbitted and wild.
Unbitted → It is formed from "un-" (meaning not) and "bitted" (from the Old English "bitt", meaning a small piece or morsel, often referring to a bit used in horse riding). The word "unbitted" means not having a bit, particularly in the context of horses, indicating a lack of control or restraint.
Think of 'not' ('un-') having a 'bit' ('bitt') in the context of horse riding — that's why unbitted means not having a bit.