be past (someone's or something's) best
(redirected from be past her best)be past (someone's or something's) best
To no longer be in an ideal state or condition. Many gymnasts are past their best when they are only teenagers. This computer is so slow that it's definitely past its best.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
be past your/its ˈbest
be no longer as strong, fresh, young, beautiful, etc. as before: What do you mean, somebody over 35 is past their best? That’s nonsense. OPPOSITE: in the prime of (your) lifeFarlex Partner Idioms Dictionary © Farlex 2017