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.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.