Definition of 'downhill'
Noun
- the downward slope of a hill
- a ski race down a trail
Adjective
- sloping down rather steeply
Synonyms: declivitous downward-sloping
Adverb
- toward a lower or inferior state; "your performance has been going downhill for a long time now"
- toward the bottom of a hill; "running downhill, he gained a lot of speed"