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Definition of inert adjective from the Oxford Advanced Learner's Dictionary

inert

adjective
 
/ɪˈnɜːt/
 
/ɪˈnɜːrt/
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  1. (formal) without power to move or act
    • He lay inert with half-closed eyes.
    • The president has to operate within an inert political system.
    Extra Examples
    • I felt sleepy and inert.
    • They dragged the inert body out of the river.
    Oxford Collocations Dictionaryverbs
    • be
    • remain
    • become
    adverb
    • completely
    • relatively
    • biologically
    See full entry
  2. (chemistry) without active chemical or other properties (= characteristics)
    • chemically inert radioactive waste
    Oxford Collocations Dictionaryverbs
    • be
    • remain
    • become
    adverb
    • completely
    • relatively
    • biologically
    See full entry
  3. Word Originmid 17th cent.: from Latin iners, inert- ‘unskilled, inactive’, from in- (expressing negation) + ars, art- ‘skill, art’.
See inert in the Oxford Advanced American DictionarySee inert in the Oxford Learner's Dictionary of Academic English

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