Inertia is resistance to change. You hate looking at people's feet and yet you stay in your job as a shoe salesman year after year. Why? Inertia.

Inertia is a physics term. Isaac Newtown discovered that a body at rest would stay at rest and a body moving through space would continue moving through space unless an external force (like friction or gravity) caused it to slow down or stop. Sometimes we need an external force to help us get going or to change direction, too, like a friend to tell us to get off the couch or to quit that job at the shoe store.

Definitions of inertia
  1. noun
    (physics) the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force
    see moresee less
    moment of inertia
    the tendency of a body to resist angular acceleration
    type of:
    mechanical phenomenon
    a physical phenomenon associated with the equilibrium or motion of objects
  2. noun
    a disposition to remain inactive or inert
    “he had to overcome his inertia and get back to work”
    synonyms: inactiveness, inactivity
    see moresee less
    activeness, activity
    the trait of being active; moving or acting rapidly and energetically
    show 8 types...
    hide 8 types...
    flatness, languor, lethargy, phlegm, sluggishness
    inactivity; showing an unusual lack of energy
    the attribute of being restful
    passiveness, passivity
    the trait of remaining inactive; a lack of initiative
    indolence, laziness
    inactivity resulting from a dislike of work
    apathy, indifference, numbness, spiritlessness
    the trait of lacking enthusiasm for or interest in things generally
    listlessness, torpidity, torpidness, torpor
    inactivity resulting from lethargy and lack of vigor or energy
    faineance, idleness
    the trait of being idle out of a reluctance to work
    a failure to be active as a consequence of lack of initiative or ambition
    type of:
    a distinguishing feature of your personal nature
Word Family
F1 image

Express yourself in 25 languages

  • Learn immersively - no memorization required
  • Build skills for real-world conversations
  • Get immediate feedback on your pronunciation
Get started for $7.99/month