rue the day
To seriously regret one's actions.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
“You will rue the day you lied to me.”
“If you continue to ignore your health, you will surely rue the day you decided to skip your doctor's appointments.”
“The king realized too late that his betrayal of the alliance would cause him to rue the day he chose power over loyalty.”
- 01
a cold day in July
The time of occurrence of an event that will never happen.
- 02
a day late and a dollar short
Too late and too feeble to achieve the desired effect.
- 03
a year and a day
A long time.
- 04
all one's born days
One's whole life.
- 05
as the day is long
Unceasingly; very; thoroughly; to a very high degree.
- 06
bad hair day
A day when things seem to be unmanageable or go wrong.
- 07
bad old days
The past, seen as a time when things were worse.
- 08
banyan day
In British naval tradition, a day of the week when galley kitchens served no meat on board ship.
Last updated August 10, 2026