1. Down the slope of a hill.

2. Toward a lower or worse condition: The alcoholic's health went downhill fast.

1. Sloping downward; descending.

2. Sports Of, relating to, or constituting skiing down a slope: a downhill racer.

3. Marked by deterioration or worsening performance; worse: felt his best days were behind him and that his future could be downhill from now on.

4. Involving fewer challenges or less difficulty than before; easier: The worst is over—it's all downhill from here.

1. A downhill skiing race on a course without slalom gates.

2. A downward gradient; a descending slope.