急きゅう勾こう配ばい

noun

steep slope; steep incline

Describes a sharply inclined surface, such as a hill, road, or roof.

• この道みちは急きゅう勾こう配ばいだから、自じ転てん車しゃではきつい。

  This road is a steep slope, so it's tough by bicycle.

• 急きゅう勾こう配ばいの屋や根ねは雪ゆきが落おちやすい。

  Snow tends to slide off a steeply pitched roof.