Definition of inertia noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ɪˈnɜːʃə//
    ; NAmE NAmE//ɪˈnɜːrʃə//
    [uncountable] Energy and physical forces
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  1. 1(usually disapproving) lack of energy; lack of desire or ability to move or change I can't seem to throw off this feeling of inertia. the forces of institutional inertia in the school system
  2. 2 (physics) a property (= characteristic) of matter (= a substance) by which it stays still or, if moving, continues moving in a straight line unless it is acted on by a force outside itself See related entries: Energy and physical forces
  3. Word Originearly 18th cent. (in sense (2)): from Latin, from iners, inert- ‘unskilled, inactive’, from in- (expressing negation) + ars, art- ‘skill, art’.Extra examples Projects were frequently abandoned through sheer inertia. She lapsed into inertia and lay there as if asleep. The forces for change are not sufficient to overcome bureaucratic inertia. The forces for change in the government are not sufficient to overcome bureaucratic inertia.
See the Oxford Advanced American Dictionary entry: inertia

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