downhill

1 downhill /ˌdaʊnˈhɪl/ adverb
1 downhill
/ˌdaʊnˈhɪl/
adverb
Britannica Dictionary definition of DOWNHILL
1 
: toward the bottom of a hill or mountain
2 
: toward a worse state
2 downhill /ˈdaʊnˌhɪl/ adjective
2 downhill
/ˈdaʊnˌhɪl/
adjective
Britannica Dictionary definition of DOWNHILL
1 
: going or sloping down toward the bottom of a hill or mountain
2 
not used before a noun
a  : not difficult : easy to do, deal with, etc.
b  : becoming worse or less successful
3 
always used before a noun : relating to or used in a kind of skiing that is done down a mountain or hill instead of over the countryside
— compare 1cross-country 3
3 downhill /ˈdaʊnˌhɪl/ noun
plural downhills
3 downhill
/ˈdaʊnˌhɪl/
noun
plural downhills
Britannica Dictionary definition of DOWNHILL
[count]
: a downhill skiing race — usually singular