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to slacken

to slacken

1 4.9
Become or make slower, for example the wind
  • verb
  • /ˈslækən/
translation icon : disminuir
  • The three of them sat silently in the car while outside the rain slackened and then stopped.
  • slackened pace
  • slackening demand
  • slackened speed

Examples

  • When the excitement slackened, the people climbed back into their bench seats.

    Fiction book (1993)
  • It's hard to imagine that this trend is the result of slackening oil production.

    Blog text (24)
  • During World War I, however, production slackened because of the absence of men.

    Academic text (1993)
  • To Bill's credit, the car only slackened speed for a moment.

    Fiction book (1996)
  • But since 1992, as China experiences its current economic boom, the central government's attention to environmental concerns has slackened.

    Academic text (2006)
  • The growth rate slackened during the 1980s to 28 percent from a peak of 44 percent in the 1970s.

    Academic text (1990)
  • Prices on the stock market softened this afternoon from readings earlier in the day as the pace of trading has slackened.

  • At midday, the wind was about 25 knots, but it has slackened to about 15 knots at sunset.

    Blog text (7)
  • Although the Martian rampage seemed to have slackened somewhat, the city's attitude of sang-froid was melting rapidly into frothy panic.

    Fiction book (1996)
  • As the sun began to set, the wind slackened, providing a calm to the beach.

Synonyms

to slow
vsto slacken
957 1.0

Make something move or happen at a lower speed

also covers becoming less active or intense, not just speed
to slow down
vsto slacken
687 1.4

To move or act more slowly

includes slowing but also covers reducing general activity or intensity
to ease up
vsto slacken
57 3.7

To make something less strong or strict

is broader in meaning, focusing simply on slowing or lowering activity
to wane
vsto slacken
48 6.4

To become less in size, amount, or strength

is used for active slowing or making things less intense rather than natural fading
to lessen
vsto slacken
34 2.8

To make something smaller in amount or strength

focuses more on slowing or reducing activity rather than general decrease
to relax
vsto slacken
26 3.2

To make rules less strict

is more about slowing activity or intensity, not changing rules
to dampen
vsto slacken
16 4.4

Make something less strong or noticeable, for example sound and feeling

is about slowing or reducing activity and speed rather than just weakening signals
to dial back
vsto slacken
14 4.1

Make something, like a taste, sound, or plan, less strong

is the same but emphasizes making things slower rather than only lowering levels
to decelerate
vsto slacken
10 5.5

To slow down

covers speed but also reducing activity or intensity more generally
to slow up
vsto slacken
8 2.7

Move or make something move less quickly

also covers drops in activity or intensity beyond movement
to dial down
vsto slacken
4 4.1

To make a feeling, sound, or action less strong

is similar but also often implies slowing movement or activity
to slack
vsto slacken
3 5.3

To reduce effort, speed or attention

focuses on reducing speed or overall intensity instead
to slack off
vsto slacken
  • Informal
3 3.9

To become less strong or busy

stresses slowing or making things less active rather than just less in amount
to slack up
vsto slacken
  • UK
1 5.7

Move, act, or work less quickly and with less energy

is broader, covering reduced activity or lower intensity generally
to slacken off
vsto slacken
3.9

To become less strong or active

is the same meaning but usually used without that particle

Antonyms

to accelerate
  • Specialized
331 3.7

To move faster or make something happen faster

110 4.0

Make something stronger or more intense

Phrasal Verbs

To become less strong or active

How Intense

to intensify
110 4.0
to build up
207 3.0
to slacken
1 4.9
to die down
46 2.7
stop
310 1.0

Surface Forms

slacken infinitive
slackened past
slackened past participle
slackening present participle
slackens third person singular

Morphology

slacken = slack (transparent) = slack + en

The metaphorical extension 'make less active or intense' is a common and predictable extension of 'make slack'; learners can reasonably infer this meaning from the base.

Etymology

Slacken also keeps the idea of slack ('loose') with the ending -en meaning 'to make', and a helpful way to remember this meaning is to think that when something goes slack it loses energy. So, to slacken can mean to slow down or become less active or strong.