[ adverb, adjective doun-hil; noun doun-hil ]
See synonyms for downhill on
  1. down the slope of a hill; downward.

  2. into a worse or inferior condition: The business has been going downhill.

  1. going or tending downward on or as on a hill.

  2. free of problems or obstacles; easy: After the initial setbacks on the project, it was downhill all the way.

  1. of or relating to skiing downhill.

  1. a timed ski race on a steep slope in which competitors take the most direct route to the finish line following a course with relatively few turns and attaining very high speeds.

Origin of downhill

First recorded in 1585–95; down1 + hill

Words Nearby downhill Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use downhill in a sentence

British Dictionary definitions for downhill


/ (ˈdaʊnˈhɪl) /

  1. going or sloping down

  1. towards the bottom of a hill; downwards

  2. go downhill informal to decline; deteriorate

  1. the downward slope of a hill; descent

  2. a competitive event in which skiers are timed in a downhill run

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012