のけざま

noun

on one's back; face up

Describes a posture of lying or falling backward. Most often used adverbially as のけざまに.

• 彼かれはのけざまに倒たおれた。

  He fell on his back.

• のけざまに寝ね転ころんで空そらを見み上あげた。

  I lay on my back and looked up at the sky.