стръмност означава в английски

abruptness▼(state of being abrupt)
noun
[UK: ə.ˈbrʌpt.nəs] [US: ə.ˈbrʌpt.nəs]

ascent [ascents]▼(degree of elevation of an object, or the angle it makes with a horizontal line)
noun
[UK: ə.ˈsent] [US: ə.ˈsent]