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Definition of inertia
1a : a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external forceb : an analogous property of other physical quantities (such as electricity)
2 : indisposition to motion, exertion, or change : inertness
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Examples of inertia in a Sentence
He blames governmental inertia for the holdup.
After 10 years in an unsatisfying job she overcame her inertia and went back to school.
Recent Examples of inertia from the Web
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This came from Catapult's inertia movement analysis, which quantifies the degree of a player's movement in three-dimensional space from forward to back, left to right and even up and down.
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Nevertheless, the ultimate decision rested with Ru, who has seen both Sasha and Peppermint excel throughout the entire competition, with Sasha having an edge of consistency and Pepper riding a wave of late-in-the-game inertia.
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It was shown that the spin inertia of the Earth and Moon could have been much higher earlier in their history.
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Although this reader was looking for tips for how to battle inertia, sometimes the answer is to give yourself a giant break.
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Part of the work of the next few decades is to imagine and build a better future rather than letting inertia reign.
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The power of vested interests and of sheer political inertia is too great.
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Setting one standard for sodium intake for an entire population is outdated science and institutional inertia.
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But previous municipal bankruptcies have demonstrated that the clash between Wall Street creditors, mom-and-pop vendors, retirees, politicians, union officials and special interests is a recipe for inertia.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'inertia'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
Inertia is the inherent property of a body that makes it oppose any force that would cause a change in its motion. A body at rest and a body in motion both oppose forces that might cause acceleration. The inertia of a body can be measured by its mass, which governs its resistance to the action of a force, or by its moment of inertia about a specified axis, which measures its resistance to the action of a torque about the same axiss.
Origin and Etymology of inertia
New Latin, from Latin, lack of skill, from inert-, iners
Other Physics Terms
INERTIA Defined for English Language Learners
inertia
playDefinition of inertia for English Language Learners
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: lack of movement or activity especially when movement or activity is wanted or needed
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: a feeling of not having the energy or desire that is needed to move, change, etc.
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physics : a property of matter by which something that is not moving remains still and something that is moving goes at the same speed and in the same direction until another thing or force affects it
INERTIA Defined for Kids
inertia
playDefinition of inertia for Students
1 : a property of matter by which it remains at rest or in motion in the same straight line unless acted upon by some external force
2 : a tendency not to move or change He stayed at the job mostly because of his inertia.
Medical Dictionary
inertia
playMedical Definition of inertia
1a: a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external forceb: an analogous property of other physical quantities (as electricity)
2: lack of activity or movement—used especially of the uterus in labor when its contractions are weak or irregular
Learn More about inertia
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Thesaurus: All synonyms and antonyms for inertia Spanish Central: Translation of inertia Nglish: Translation of inertia for Spanish speakers Britannica English: Translation of inertia for Arabic speakers Britannica.com: Encyclopedia article about inertia
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