Deteriorate, worsen, as in Ever since the recession began, the business has been going downhill. The figurative use of downhill for “decline” dates from the mid-1800s. Also see downhill all the way.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use go downhill in a sentence
“When he got bit by the gubernatorial bug, things started to go downhill,” says Siegel.‘Hizzoner’ Ed Koch, Three-Term Mayor of New York, Dies at 88 | John Avlon | February 1, 2013 | THE DAILY BEAST
When the dorsolateral PFC goes tilt, things go downhill fast, cognitively speaking.The Science Behind Rick Perry’s Debate Brain Freeze | Sharon Begley | November 10, 2011 | THE DAILY BEAST
And when he invites a wheelchair-bound guest to commiserate with him about his bubble-wrapped foot, things go downhill from there.
And, ma'am, I know that his brother will be the ruin of John; he'll go downhill fast, as many a fine young fellow has done.For John's Sake | Annie Frances Perram
Since I began to go downhill everybody gives me a kick; you are the first people who have offered me a helping hand.A Book of Quaker Saints | Lucy Violet Hodgkin
You are young, and it is my duty to let no young person go downhill without one warning word.The Princess Priscilla's Fortnight | Elizabeth von Arnim
Before they left the summit of the divide to go downhill into the west, they halted for one last look back.When the West Was Young | Frederick R. Bechdolt
We therefore put brakes of rope under our runners when we were to go downhill.The South Pole, Volumes 1 and 2 | Roald Amundsen