unruly horse; unmanageable horse; unbroken horse
Refers to a horse that is wild, difficult to control, or not yet tamed. Often used in literary or descriptive contexts.
He struggled to tame the unruly horse.
No one could ride that unmanageable horse.
Standard kanji spelling for an unruly horse.
Variant kanji form; 駻 is a less common character for 'wild horse'.
Compound of 悍 (fierce, wild) and 馬 (horse). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of an untamed horse.