From this point the climb became suddenly steep.
The staircase leading to the rooftop is narrow, steep, and dark.
The steep path is the sole access to the border.
The steep path is the sole access to the border.
To climb steep hills requires a slow pace at first.
The higher we climbed, the steeper became the mountain.
We climbed the steep slope.
We climbed up the steep mountain.
I found the banana on a steep mountain road.
Watch your step, the stairs are steep.