Meaning of “inert” in the English Dictionary

"inert" in British English

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inertadjective

uk /ɪˈnɜːt/ us /ˌɪnˈɝːt/

(Definition of “inert” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"inert" in American English

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inertadjective

us /ɪˈnɜrt/

inert adjective (NOT MOVING)

not moving or not able to move:

The inert figure of a man lay in the front of the car.

inert adjective (CHEMISTRY)

[ not gradable ] not reacting chemically with other substances:

an inert gas

(Definition of “inert” from the Cambridge Academic Content Dictionary © Cambridge University Press)