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impulse

impulse

23 4.2
A sudden push that makes a thing change speed or direction
  • noun
  • /ˈɪmˌpʌls/
  • Specialized
translation icon : impulso
  • After feeling a sudden impulse to run, he decided to take a quick jog around the block.
  • momentum and impulse
  • produce an impulse
  • force-time impulse

Examples

  • Then, as if on a single impulse, every Jarada present began pounding its balance-claws on the floor in approval.

    Fiction book (1992)
  • We have these biological tendencies and impulses and learning to pause creates a space for reason to come in.

  • The only healthy impulse driving me was the urge to keep our music alive.

    Fiction book (2002)
  • The community stagnates without the impulse of the individual.

    Academic text (1992)
  • But the passage of time is all it takes to erode that initial impulse.

    Fiction book (2001)
  • So we have these biological impulses, they are incredibly strong drivers that force us to seek progress and contribution to the group.

  • The teacher emphasized the importance of controlling one's impulse to react without thinking.

  • During the meeting, her impulse was to suggest an innovative solution to the problem.

Synonyms

impact
vsimpulse
371 3.7

A sudden, forceful hit between two things

is the sudden force that causes momentum change rather than a collision event
jolt
vsimpulse
64 3.8

A sudden hard movement that shocks or surprises you

is the sudden force that causes motion rather than the motion itself
blast
vsimpulse
37 3.3

A sudden strong movement of air that pushes things

is the sudden force applied to cause movement rather than moving air itself
shove
vsimpulse
31 2.7

A quick strong push that moves someone or something

is the sudden force causing movement rather than a direct human push
thrust
vsimpulse
26 4.2

A strong sudden push often made with a hand or weapon

is the sudden force causing movement not necessarily produced by a body part or tool
impetus
vsimpulse
1 7.0

A sudden force that makes something start moving faster

is the single sudden push that causes an immediate change in momentum
impulsion
vsimpulse
7.9

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

is the sudden force itself rather than the act of applying it
jounce
vsimpulse
9.9

A sudden jolt that makes things shake

is the sudden force producing change of momentum rather than the jarring result

Antonyms

24 1.0

To remain in the same state without change

Compounds

nerve impulse
  • Specialized
1 4.9

An electrical signal that travels along a nerve to carry messages in the body

neural impulse
  • Specialized
1 6.5

An electrical signal that travels along a nerve to send information

A sudden strong desire to do something you cannot control

nervous impulse
  • Specialized
1 5.8

An electrical message that travels along a nerve to carry information

impulse explosive
  • Specialized
9.1

A strong chemical that pushes shells, rockets, or torpedoes forward

impulse relay
  • Specialized
8.2

A small electric switch that changes when you press a button and stays that way until pressed again

impulse turbine
  • Specialized
7.4

A machine whose blades are turned by fast jets of water or steam

A sudden strong wish to do something without a clear reason

How Forceful

impact
371 3.7
blow
271 2.0
jolt
64 3.8
impulse
  • Specialized
23 4.2
to push
1.0
nudge
23 3.5

Surface Forms

impulse singular
impulses plural

Morphology

impulse = pulse (semi-transparent) = im + pulse

The form 'im-' + 'pulse' suggests a 'push' and the basic idea of a sudden push is present, but many learners know 'pulse' mainly as a beat, so the link to 'push' is not fully obvious.

Etymology

Impulse comes from the Latin parts im- 'in' and puls- 'push', and is related to the common word pulse for a quick beat. So an impulse is a sudden 'push' that changes motion or gives a short force.