乱す・紊す|みだすmidasu[2]nakadaka (mid-high)
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Which spelling to use
乱す乱す is the most common form and the recommended default for beginners, so use it when writing or producing this word.
紊す紊す is a rarely used variant; learners will seldom need to write it and should normally choose 乱す instead.
Definitions
- godan verb, transitive verbto throw into disorder; to disarrange; to disturb (order, peace, etc.); to corrupt (public morals); to dishevel (hair)
Conjugation
| Dictionary form | 乱す（みだす） |
|---|---|
| Polite (masu) | 乱します（みだします） |
| Negative (nai) | 乱さない（みださない） |
| polite (masen) | 乱しません（みだしません） |
| classical zu / nu | 乱さず・乱さぬ（みださず・みださぬ） |
| Past (ta) | 乱した（みだした） |
| polite (mashita) | 乱しました（みだしました） |
| Past negative (nakatta) | 乱さなかった（みださなかった） |
| polite (masen deshita) | 乱しませんでした（みだしませんでした） |
| Te form | 乱して（みだして） |
| Potential | 乱せる（みだせる） |
| Passive | 乱される（みだされる） |
| Causative | 乱させる（みださせる） |
| Causative passive | 乱させられる（みださせられる） |
| Conditional (ba) | 乱せば（みだせば） |
| tara | 乱したら（みだしたら） |
| Volitional | 乱そう（みだそう） |
| polite (mashou) | 乱しましょう（みだしましょう） |
| Imperative | 乱せ（みだせ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Transitive / intransitive pair
髪が風で乱れる
乱れる describes something becoming disordered, often due to an external cause, while 乱す focuses on an agent actively disrupting order.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Synonyms & antonyms
- Synonymかき乱すかきみだすNeutralRefers to stirring something up with a churning feel, as in 「心をかき乱す」 or 「髪をかき乱す」; 「乱す」 centers on breaking order or neatness.
- Related崩すくずすNeutralCovers dismantling things, upsetting balance, or relaxing one's demeanor; 「乱す」 focuses on disturbing order.
- Related揺さぶるゆさぶるNeutralMeans shaking something physically or unsettling someone's mind; 「乱す」 focuses on disrupting order.
- Related騒がすさわがすNeutralMeans stirring up an uproar and disturbing people; 「乱す」 focuses on disrupting order.
- Related揺すぶるゆすぶるNeutralMeans just shaking or rocking something; 「乱す」 focuses on breaking a neat, orderly state.
- Related揺り動かすゆりうごかすNeutralMeans shaking something, and by extension shaking people's hearts; 「乱す」 focuses on disruption.
- Related引っ掻き回すひっかきまわすNeutralMeans ransacking things into a jumble or stirring up trouble; 「乱す」 focuses on disrupting order.
- Related狂わせるくるわせるNeutralMeans driving plans or machines out of order or haywire; 「乱す」 focuses on breaking neatness.
- Related騒がせるさわがせるNeutralMeans alarming people or making them uneasy; 「乱す」 focuses on disrupting order.
- Antonym整えるととのえるNeutralAntonym: arranging and putting things in good order, the opposite of 「乱す」's disordering.
- Antonym整理するNeutralAntonym: tidying and sorting out, the opposite of 「乱す」's messing things up.
Use 「乱す」 for throwing order, a line, or neat hair into disarray, as in 「列を乱す」 and 「風紀を乱す」. For churning up feelings pick 「かき乱す」, for upsetting balance 「崩す」, for ransacking 「引っ掻き回す」, and for tidying 「整える」.
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
