Learn Japanese while reading Manga with our new Manga Reader Tool!

Nihongo

Classroom

How to say 'Invalid' in Japanese | 無効

Wondering how to say 'Invalid' in Japanese? You're in the right place!

The Japanese word for Invalid is 'Mukou', written as 無効 in Japanese.'Invalid' in hiragana is むこう.

    word

    無効

    Meaning

    Invalid

    Reading

    むこう

    mukou

    Kanji

    無Nothing 効Effective

    Explanation

    The Japanese adjectival noun '無効 (むこう)' means 'invalid' or 'null and void'. It is used to describe something that has no legal or binding force, or something that is not effective or recognized. This term is often used in legal, contractual, or technical contexts. For example: The contract is invalid「その契約は無効です」(そのけいやくはむこうです). The ticket is no longer valid「そのチケットは無効になりました」(そのチケットはむこうになりました). It can also be used in everyday situations to indicate that something is not functioning or recognized, such as a coupon or a password.

    Part Of Speech

    adjectival noun

    Kanji JLPT

    Unknown

    Kanji Grade

    5

    Frequency

    6172

    Composition

    kanji

    Handwriting

Kanji in the Word 無効

This word contains 2 kanji characters:

  • kanji

    無

    Meaning

    Nothing

  • kanji

    効

    Meaning

    Effective

Words Related to 無効 Through the Kanji 無

These 36 Words contain the Kanji 無 as well.

  • word

    無い

    Meaning

    Non existent

  • word

    無

    Meaning

    Without

  • word

    無理

    Meaning

    Impossible

  • word

    無くなる

    Meaning

    Disappear, Runout

  • word

    無し

    Meaning

    Without

  • word

    無料

    Meaning

    Free

  • word

    仕方無い

    Meaning

    Helpless

  • word

    無論

    Meaning

    Of course, Naturally

  • word

    無くす

    Meaning

    Lose

  • word

    有無

    Meaning

    Existence, Non existence

  • word

    御無沙汰

    Meaning

    Neglect

  • word

    無事

    Meaning

    Safely

  • word

    無口

    Meaning

    Quiet

  • word

    間も無く

    Meaning

    Soon

  • word

    無茶

    Meaning

    Reckless

  • word

    無用

    Meaning

    Useless, Unnecessary

  • word

    無知

    Meaning

    Ignorance

  • word

    無能

    Meaning

    Incompetent

  • word

    無言

    Meaning

    Silence

  • word

    無生物

    Meaning

    Inanimate

  • word

    無限

    Meaning

    Infinite

  • word

    無制限

    Meaning

    Unlimited

  • word

    無数

    Meaning

    Countless

  • word

    無色

    Meaning

    Colorless

  • word

    無意味

    Meaning

    Meaningless

  • word

    無意識

    Meaning

    Unconsciously

  • word

    無関心

    Meaning

    Indifferent

  • word

    無関係

    Meaning

    Unrelated

  • word

    無責任

    Meaning

    Irresponsible

  • word

    無害

    Meaning

    Harmless

  • word

    無理矢理

    Meaning

    Forcibly

  • word

    無線

    Meaning

    Wireless

  • word

    無視

    Meaning

    Ignore

  • word

    無駄

    Meaning

    Waste

  • word

    無駄遣い

    Meaning

    Waste

  • word

    無邪気

    Meaning

    Innocent

Words Related to 無効 Through the Kanji 効

These 6 Words contain the Kanji 効 as well.

  • word

    効果

    Meaning

    Effect

  • word

    有効

    Meaning

    Effective

  • word

    効率

    Meaning

    Efficiency

  • word

    効き目

    Meaning

    Effect

  • word

    効く

    Meaning

    Work

  • word

    効力

    Meaning

    Effectiveness

Learn the Word 無効

Let's make sure you fully understand this word.

What does 'Mukou' (無効) mean?

'Mukou' means 'Invalid' .

To help you master this word, here's an interactive lesson where you'll practice its readings and meanings.