noun
wild horse; untamed horse
Refers to a horse that is not domesticated or is difficult to control. Can be used literally or figuratively for a spirited, unruly person.
彼はまるで荒駒のような若者だ。
He is a young man like a wild horse.
荒駒を手なずけるのは難しい。
It is difficult to tame a wild horse.