What does Inertia mean?

Definitions for Inertiaɪnˈɜr ʃə, ɪˈnɜr-

Here are all the possible meanings and translations of the word Inertia.

Princeton's WordNet

  1. inactiveness, inactivity, inertia(noun)

    a disposition to remain inactive or inert

    "he had to overcome his inertia and get back to work"

  2. inertia(noun)

    (physics) the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force


  1. Inertia(n.)

    (Physics) That property of matter by which it tends when at rest to remain so, and when in motion to continue in motion, and in the same straight line or direction, unless acted on by some external force; -- sometimes called vis inerti

  2. Origin: [L., idleness, fr. iners idle. See Inert.]


  1. inertia(Noun)

    The property of a body that resists any change to its uniform motion; equivalent to its mass.

  2. inertia(Noun)

    In a person, unwillingness to take action.

Webster Dictionary

  1. Inertia(noun)

    that property of matter by which it tends when at rest to remain so, and when in motion to continue in motion, and in the same straight line or direction, unless acted on by some external force; -- sometimes called vis inertiae

  2. Inertia(noun)

    inertness; indisposition to motion, exertion, or action; want of energy; sluggishness

  3. Inertia(noun)

    want of activity; sluggishness; -- said especially of the uterus, when, in labor, its contractions have nearly or wholly ceased

  4. Origin: [L., idleness, fr. iners idle. See Inert.]


  1. Inertia

    Inertia is the resistance of any physical object to a change in its state of motion or rest, or the tendency of an object to resist any change in its motion. The principle of inertia is one of the fundamental principles of classical physics which are used to describe the motion of matter and how it is affected by applied forces. Inertia comes from the Latin word, iners, meaning idle, or lazy. Isaac Newton defined inertia as his first law in his Philosophiæ Naturalis Principia Mathematica, which states: In common usage the term "inertia" may refer to an object's "amount of resistance to change in velocity", or sometimes to its momentum, depending on the context. The term "inertia" is more properly understood as shorthand for "the principle of inertia" as described by Newton in his First Law of Motion; that an object not subject to any net external force moves at a constant velocity. Thus an object will continue moving at its current velocity until some force causes its speed or direction to change. On the surface of the Earth inertia is often masked by the effects of friction and air resistance, both of which tend to decrease the speed of moving objects, and gravity. This misled classical theorists such as Aristotle, who believed that objects would move only as long as force was applied to them.

The Nuttall Encyclopedia

  1. Inertia

    that property of bodies by which they remain in a state of rest or of motion in a straight line till disturbed by a force moving them in the one case or arresting them in the other.

The Standard Electrical Dictionary

  1. Inertia

    A force in virtue of which every body persists in its state of motion or rest except so far as it is acted on by some force.

Suggested Resources

  1. inertia

    Song lyrics by inertia -- Explore a large variety of song lyrics performed by inertia on the Lyrics.com website.


  1. Chaldean Numerology

    The numerical value of Inertia in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of Inertia in Pythagorean Numerology is: 4

Sample Sentences & Example Usage

  1. Elbert Hubbard:

    The reason men oppose progress is not that they hate progress, but that they love inertia.

  2. Cook County Sheriff Tom Dart:

    These folks are nonviolent, not dangerous. They are in here because of inertia built into a large system.

  3. W. Clement Stone:

    That's why many fail -- because they don't get started -- they don't go. They don't overcome inertia. They don't begin.

  4. James Chao:

    This creates an environment where inertia is the norm, which allows automakers which may otherwise disappear to continue to survive for decades.

  5. Michael Hewson:

    There has been a poor session in Asia and I don't think investors are getting involved ... Basic inertia and low volumes are dragging markets lower.

Images & Illustrations of Inertia

  1. InertiaInertiaInertia

Translations for Inertia

From our Multilingual Translation Dictionary

Get even more translations for Inertia »


Find a translation for the Inertia definition in other languages:

Select another language:

Discuss these Inertia definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"Inertia." Definitions.net. STANDS4 LLC, 2018. Web. 25 Apr. 2018. <https://www.definitions.net/definition/Inertia>.

Are we missing a good definition for Inertia? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for Inertia:

Thanks for your vote! We truly appreciate your support.