all-time

alternative alltime

1. not comparableOf all time; unsurpassed up to the present time.

   Sales have reached an all-time low, so the business may have to declare bankruptcy.

   2 more examples

   And the Premier League's all-time top-goalscoring midfielder proved he has not lost the knack of being in the right place at the right time with a trio of clinical finishes.

   2011 October 2, Jonathan Jurejko, “Bolton 1 - 5 Chelsea”, in BBC Sport

   During the 1960s and 1970s, when both the quality of architecture and the appreciation of historic buildings reached an all-time low, British Railways was notorious for replacing good station buildings and canopies with little more than bus shelters, usually in conjunction with de-staffing.

   2020 December 2, Anthony Lambert, “Reimagining Railway Stations”, in Rail, page 38