JLPT N2 Upper Intermediate
無効
Invalid, void, or ineffective; having no official power or legal force.
Readings
Other forms
無効だ is invalid
無効な invalid [modifier]
無効にする to invalidate
Noun, Na-adjective
"Invalid" / "Void" / "Ineffective"
Refers to a state where an action, document, or rule lacks validity, efficacy, or legal force.
Example
この チケット は 期限切れ で 無効 です 。
This ticket is expired and invalid.
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