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inertia noun [ ɪˈnəːʃə ]

• a tendency to do nothing or to remain unchanged.
• "the bureaucratic inertia of the various tiers of government"
Similar: inactivity, inaction, inactiveness, inertness, dormancy, passivity, apathy, accidie, malaise, stagnation, dullness, enervation, sluggishness, lethargy, languor, languidness, listlessness, torpor, torpidity, idleness, indolence, laziness, sloth, slothfulness, motionlessness, immobility, lifelessness, fainéance, stasis, otiosity, hebetude,
Opposite: activity, energy,
• a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
• "the power required to overcome friction and the inertia of the moving parts"
Origin: early 18th century (in inertia (sense 2)): from Latin, from iners, inert- (see inert).


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