急きゅう傾けい斜しゃ

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

steep slope; steep incline

Refers to a sharply inclined surface or gradient, often in geographical or engineering contexts.

• この道みちは急きゅう傾けい斜しゃなので、冬ふゆは通つう行こう止どめになる。