Translation guide
How to express accidentally revealing information in Japanese, from casual blurting to formal leaks.
To unintentionally reveal a secret or private thought through speech.
Literally 'to let one's mouth slip'. The most common and natural way to say 'let slip' in conversation.
I accidentally let slip about the surprise.
To say something carelessly or without thinking. Emphasizes the accidental nature.
He carelessly let the secret slip.
To leak (information). Often used when secrets are disclosed, intentionally or not.
She inadvertently let her true feelings slip.
Onomatopoeic phrase for blurting something out casually or accidentally. Conveys a light, unintentional slip.
He blurted out the secret.
To let something physical slip from one's grasp or control.
To fail to take advantage of a chance or moment.
The English phrase 'let slip' has no single direct equivalent. Always choose the Japanese expression based on what is slipping: words, objects, or opportunities.
彼は釣った魚を逃してしまった。
He let the fish he caught slip away.
He let the chance for promotion slip away.