inoperative
US /ˌɪnˈɑː.pɚ.ə.t̬ɪv/
UK /ˌɪnˈɑː.pɚ.ə.t̬ɪv/
1.
không có tác dụng
(of a law, rule, etc.) not having effect or power, or (of a machine, system, etc.) not working or not able to work as usual:
:
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The old regulations became inoperative when the new ones were issued.