Copyright © 2026 Kotomora. All Rights Reserved.

Words Kanji Guides About

みだりに Japanese meaning | Kotomora

みだりに

み

だ

り

に

Freq.FrequencyTop 100,000

Meanings

1

adverb

without authority; without permission

usually written using kana alone

Used when someone acts without proper authorization or right, often in formal or legal contexts.

みだりに個こ人じん情じょう報ほうを開かい示じしてはいけない。
You must not disclose personal information without authorization.

2

adverb

without reason; unnecessarily

usually written using kana alone

Written forms

Applies to each form listed below

rarely-used kanji form

妄みだりに
Rare kanji form; the character 妄 suggests 'reckless' or 'deluded'.
濫みだりに
Rare kanji form; 濫 carries a sense of 'excessive' or 'overflowing'.
猥みだりに
Rare kanji form; 猥 implies 'indecent' or 'disorderly'.
漫みだりに
Rare kanji form; 漫 suggests 'aimless' or 'random'.
乱みだりに
Rare kanji form; 乱 means 'disorder' or 'confusion'.

Kanji

Indicates doing something without a good reason or needlessly; often used in prohibitions or warnings.

みだりに動どう物ぶつに触さわらないでください。
Please do not touch the animals without reason.

3

adverb

recklessly; indiscriminately; arbitrarily

usually written using kana alone

Describes careless, random, or thoughtless actions; can imply a lack of restraint or consideration.

彼かれはみだりにお金かねを使つかう癖くせがある。
He has a habit of spending money recklessly.
みだりに木きを切きってはいけない。
You must not cut down trees indiscriminately.

妄delusion, unnecessarily, without authority
濫excessive, overflow, spread out
猥obscene
漫cartoon, involuntarily, unrestrained
乱riot, war, disorder

Similar words

勝かっ手てに
勝手に emphasizes acting on one's own convenience or selfishly, while みだりに focuses on lack of authority, reason, or restraint.
無む闇やみに
無闇に means 'thoughtlessly' or 'excessively' and often overlaps with みだりに in the sense of 'recklessly', but みだりに can also imply illegality or lack of permission.

Etymology

Derived from the classical adjective みだり (乱り/妄り), meaning 'disorderly' or 'reckless', combined with the adverbial particle に. The kanji forms reflect different nuances of disorder or excess, but the word is now almost exclusively written in kana.