裸はだか馬うま

noun, noun which may take the genitive case particle 'no'

unsaddled horse; bareback horse

Refers to a horse without a saddle, often ridden bareback. Can also describe the state of the horse itself.

• 彼かれは裸はだか馬うまに乗のって草そう原げんを駆かけ抜ぬけた。

  He rode an unsaddled horse across the grassland.