Uphill
Definition 1 of 3
Pro Tip 1/2
Physical Effort
Using 'uphill' can imply the physical challenge or difficulty of an action. After the long hike uphill, they were exhausted.
Pro Tip 2/2
Literal Slope
'Uphill' is often used to describe the literal slope of terrain, not a figurative action. The car struggled as it went uphill.