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impetus

impetus

1 7.0
A sudden force that makes something start moving faster
  • noun
  • /ˈɪmpɪtəs/
translation icon : impulso
  • And it was that impetus that led him to write down a wave equation of motion, an equation of motion for waves.

So this, this impetus that it has once it has been aroused in quita and is hurrying along, is speeding along.

Examples

  • Instead of taking off in a customary manner, straight up, we will conserve fuel by using a mile-long slide to give us impetus.

  • Photo (color): The rare discovery of a late-12th-century chess piece (a bishop) was the impetus for the $1.2 million excavations.

    Academic text (2008)
  • The museum's impetus is to address the underrepresentation of minorities and women in the sciences, both in academia and in science-related careers.

    Academic text (2003)
  • At the finish of a leap, Jilly threw herself to the floor with such impetus that her small body slid along the boards for a distance before it lost momentum and she lay motionless, stretched at full length.

    Fiction book (1990)
  • The athlete gathered impetus during his run and leaped over the final hurdle with ease.

  • Her speech served as an impetus for change within the organization, inspiring many to take action.

  • The car gained impetus as it rolled down the hill, picking up speed quickly.

Synonyms

force
vsimpetus
  • Specialized
2.3

Physical power that makes things move or break

focuses on a sudden applied action to create motion rather than general power
momentum
vsimpetus
198 4.1

A push that keeps something moving or making progress

emphasizes initial sudden application to start motion rather than continued strength
push
vsimpetus
192 2.6

Strong energy and determination to make something happen

refers to physical sudden action causing motion not to personal ambition or effort
propulsion
vsimpetus
82 6.2

A force that pushes something forward, like an engine or wind

highlights sudden single application rather than a continuous driving process
driving force
vsimpetus
39 4.1

A force that makes something move forward

focuses more on a sudden applied action than steady causal agency
impulse
vsimpetus
  • Specialized
23 4.2

A sudden push that makes a thing change speed or direction

combines ongoing energy with sudden application to cause motion
motive power
vsimpetus
  • Specialized
1 5.5

Energy that makes a machine like a car or train move

applies more to living things when sudden action starts movement than to machines
impulsion
vsimpetus
7.9

A sudden strong feeling or push that makes people and things act

emphasizes the sudden act rather than ongoing energy behind movement

Antonyms

inertia
  • Specialized
12 6.4

The way an object stays still or keeps moving unless something pushes it

1 6.5

Still water that does not move in pipes or lakes, causing poor quality

How Forceful

force
  • Specialized
2.3
momentum
198 4.1
surge
132 4.2
thrust
26 4.2
impetus
1 7.0
nudge
23 3.5

Surface Forms

impetus singular
impetuses plural

Etymology

Impetus comes from Latin impetus, which meant 'attack' or 'force', and was made from in- 'into' and petere 'to seek' or 'to attack'. So a physical impetus is like a sudden 'push into' motion, the force that makes a body start moving.