無効は英語で
invalid

英語の定義

無効
1. adj. ineffective, invalid
2. adj. Usage: * May be translated into idiomatic English as "off" or "disabled" in some contexts:
Usage: * JavaScriptを無効にする - literally render JavaScript ineffective
Usage: * JavaScriptが無効になっています - JavaScript is disabled
3. n. invalidity, no effect

invalid
1. adj. Not valid; not true, correct, acceptable or appropriate.
Your argument is invalid because it uses circular reasoning.
This invalid contract cannot be legally enforced.
2. n. (dated, sometimes offensive) Any person with a disability or illness.
3. n. (dated, sometimes offensive) A person who is confined to home or bed because of illness, disability or injury; one who is too sick or weak to care for themselves.
4. n. (archaic) A disabled member of the armed forces; one unfit for active duty due to injury.
5. adj. Intended for use by an invalid.
6. v. (UK, transitive) To exempt from duty because of injury or ill health.
He was invalided home after the car crash.
7. v. To make invalid or affect with disease.