- never surpassed or greater: Production will reach an all-time high.
- regarded as such in its entire history: an all-time favorite song.
Origin of all-time
First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for all-time
Some dried cranberries for tartness and a sprinkle of sea salt make these my all-time favorite cookies.Make These Barefoot Contessa Salty Oatmeal Chocolate Chunk Cookies
November 28, 2014
According to Gallup, a mere 24 percent identify themselves as Republicans—an all-time low.Reality Check: There Are No Swing Voters
November 13, 2014
And I knew she wrote for The Office, which is one of my all-time favorites, so I knew I wanted to work with her.Inside the Mind of The Mindy Project’s Resident Weirdo, Ike Barinholtz
September 16, 2014
From Janay Rice to Christy Mack to Rihanna, our obsession with celebrity victims has reached an all-time high.Why We're So Hard on Janay Rice and Celebrity Survivors of Abuse
September 15, 2014
Indeed, in some surveys pessimism about the next generation stands at an all-time high.Class Issues, Not Race, Will Likely Seal the Next Election
September 7, 2014
The Red River made an all-time record by flowing four miles an hour.North Dakota
The number of Americans at work has reached an all-time high.
The inflationary pressures on prices and rents, with relatively few exceptions, are now at an all-time peak.
At the same time profits of corporations have reached an all-time record in 1947.
Farm exports are setting an all-time record each year, and farm income last year, net farm income, was up more than 25 percent.
- (prenominal) informal unsurpassed in some respect at a particular timean all-time record at the Olympics
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
Word Origin and History for all-time
Online Etymology Dictionary, © 2010 Douglas Harper