How to say invalid in Japanese

JLPTN1
無効★【むこうmukou】 Inflection

~の noun / adjectival noun / noun:

  • invalid; void; ineffective; unavailable Antonym: 有効

Example Sentences

彼女のkanojono父chichiはha心臓病shinzoubyouでde病人byouninになってninatteしまったshimatta。
Her father became an invalid as a result of a heart attack.
むりやりmuriyariサインSAINをwoさせられたsaseraretaのnoならnara、そのsono契約keiyakuはha無効mukouですdesu。
If you were forced to sign the contract, it's invalid.
むりやりmuriyariサインSAINさせられたsaseraretaのnoならnara、そのsono契約keiyakuはha無効mukouですdesu。
If you were forced to sign the contract, it's invalid.
このkonoｅ—ｍａｉｌアドレスADORESUはha明日ashitaからkaraはha使用shiyou不可能fukanouになりますninarimasu。
From tomorrow this email address will be invalid.
小学校shougakkou低tei学年gakunenのno頃koro、僕bokuはha父chichiにni俳句haikuをwo教えoshieられrare、俳人haijinにni憧れakogareたta。七夕tanabataのno願い事negaigotoもmo「はいhai人hitoにniなれnareますmasuようyouにni。」とto書いkaiたta。あれareからkara３０年nen、願いnegaiはhaかなっkanaたta。今やimaya僕bokuはha紛れmagireもmoないnai廃人haijinだda。
When I was in my first years of grade school, my father taught me a haiku and I longed to be a poet. On my Tanabata wish, I also wrote "Please make me a poet". Thirty years have passed and my wish has been granted. I am without doubt an invalid.

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