漏らす・洩らす|もらすmorasu[2]nakadaka (mid-high)
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Which spelling to use
漏らす漏らす（もらす） is the most common written form and the practical default for learners; use it for all the meanings covered by this entry.
洩らす洩らす（もらす） is a less common written variant of 漏らす（もらす）; you may encounter it, but it is not the form beginners should normally choose.
Definitions
- godan verb, transitive verbto let leak; to let out (e.g. light)
- godan verb, transitive verbto let out (a secret); to leak (information); to divulge; to disclose; to let slip
- godan verb, transitive verbto give utterance to (e.g. one's dissatisfaction); to vent; to express; to reveal (e.g. one's true intentions); to let out (a sigh, etc.)
- godan verb, transitive verbto wet one's pants
- godan verb, transitive verbto omit; to leave out
- suffix, godan verbto fail to do; to miss; to omit (by mistake); to forget to doafter the -masu stem of verb
Conjugation
| Dictionary form | 漏らす（もらす） |
|---|---|
| Polite (masu) | 漏らします（もらします） |
| Negative (nai) | 漏らさない（もらさない） |
| polite (masen) | 漏らしません（もらしません） |
| classical zu / nu | 漏らさず・漏らさぬ（もらさず・もらさぬ） |
| Past (ta) | 漏らした（もらした） |
| polite (mashita) | 漏らしました（もらしました） |
| Past negative (nakatta) | 漏らさなかった（もらさなかった） |
| polite (masen deshita) | 漏らしませんでした（もらしませんでした） |
| Te form | 漏らして（もらして） |
| Potential | 漏らせる（もらせる） |
| Passive | 漏らされる（もらされる） |
| Causative | 漏らさせる（もらさせる） |
| Causative passive | 漏らさせられる（もらさせられる） |
| Conditional (ba) | 漏らせば（もらせば） |
| tara | 漏らしたら（もらしたら） |
| Volitional | 漏らそう（もらそう） |
| polite (mashou) | 漏らしましょう（もらしましょう） |
| Imperative | 漏らせ（もらせ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Transitive / intransitive pair
水が漏れる
水を漏らす
漏れる presents the leak as something that happens by itself (water leaks), while 漏らす focuses on an agent causing the leak (someone or something lets water leak out).
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Synonyms & antonyms
- Synonym漏洩ろうえいWrittenA formal noun (suru-verb) for leaks of confidential information or gas and liquid, as in 「情報漏洩」; 「漏らす」 is the verb and also covers letting words slip.
- SynonymこぼすNeutralCovers spilling liquid and also letting feelings show, especially grumbling, as in 「愚痴をこぼす」; the emphasis is on complaining.
- Synonym口走るくちばしるNeutralMeans blurting words out without thinking, saying inadvertently what one did not mean to; the focus is on the slip of the tongue.
- Synonym発するはっするWrittenA written-style verb for emitting sounds, light, heat and the like; more formal in tone than 「漏らす」.
- Synonym抜かすぬかすNeutralMeans omitting or skipping items, and is also used rudely for 'saying', as in 「何を抜かす」; rougher than 「漏らす」 in that sense.
- SynonymばらすCasualA colloquial verb for spilling secrets, whether deliberately or by accident, as in 「うっかりばらす」; more casual than 「漏らす」.
- Related暴露ばくろNeutralA noun for exposing or uncovering scandals and secrets, as in 「秘密を暴露する」; it stresses public exposure rather than the act of letting something leak.
- RelatedつくNeutralUsed for breathing out and for uttering lies or foul words, as in 「嘘を吐く」; the focus is on what comes out of the mouth, not on leaking.
- Related放つはなつNeutralCovers firing arrows or bullets and giving off light or smells, as in 「光を放つ」; it describes sending something outward, intended or not, rather than letting it leak.
- Related吐露とろWrittenA written-style noun for openly pouring out one's true feelings, as in 「心情を吐露する」; it implies sincere, unreserved confession.
- Related書き残すかきのこすNeutralUsed for writing things down to leave behind, like a will, and also for leaving something unwritten; the emphasis is on what gets written and kept.
- Related見過ごすみすごすNeutralMeans letting something pass without acting on it, as in 「不正を見過ごす」; the nuance is failing to deal with what you see, not leaking.
- Related見落とすみおとすNeutralRefers to looking right at something and failing to notice it, as in 「ミスを見落とす」; the omission is visual, unlike the verbal leaks of 「漏らす」.
- Related言い漏らすいいもらすNeutralMeans forgetting to mention something, or letting a secret slip unintentionally; the nuance is failing to say what one should have.
- RelatedこくCasualA vulgar colloquial verb for expelling gas, especially farting, or for spouting nonsense; far cruder than 「漏らす」 and only for rough speech.
- Related書き落とすかきおとすNeutralRefers to leaving something out when writing, i.e. forgetting to write it down; the omission is on paper, unlike the spoken leaks of 「漏らす」.
- Antonym隠すかくすNeutralAntonym: to hide things or conceal facts and secrets from others — the opposite of letting them leak out with 「漏らす」.
- Antonym秘めるひめるNeutralAntonym: to keep feelings hidden deep inside, as in 「思いを秘める」 — the opposite of voicing or leaking them with 「漏らす」.
Use 「漏らす」 for letting secrets or sighs escape, letting words slip out, or even wetting oneself, as in 「秘密を漏らす」 and 「ため息を漏らす」. For formal leaks of information or gas and liquid, use 「漏洩」; to spill a secret in casual speech, 「ばらす」; to pour out one's heart sincerely, 「吐露」; to grumble, 「こぼす」. To hide or keep something secret, use the antonyms 「隠す」 or 「秘める」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
