unring a bell

Impossible act of forgetting

To unring a bell is to undo something that cannot be undone—to take back words already spoken, unsee something already witnessed, or reverse an action whose effects have already spread.

The phrase appears almost exclusively in the negative: You can't unring a bell.

Once information is out, once damage is done, there's no returning to the prior state.

Common in legal contexts where jurors are instructed to disregard inadmissible testimony they've already heard.

Related

slip of the tongue · no take backs · immutable · indelible · unalterable · toothpaste · unchangeable · regret · liability · Pandora's box · retraction · guilt · confession · revelation · denial · inevitable · announcement · damage control

Opposites
reversibility of action

unring a bellring a bell

Evoke partial recognition

make a mark · let the cat out of the bag · cross the Rubicon · open Pandora's box · spill the beans

possibility vs impossibility

unring a bellundo

Reverse a prior action

reverse · take back · unsay · walk it back · retract

information/knowledge state

unring a bellreveal

Make something visible

disclose · expose · make known · broadcast · publicize

Family

unring, ring, bell, rings, rang, rung, ringing, ringer, ringers

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G