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to slack off

to slack off

3 3.9
To become less strong or busy
  • phrasal verb
  • /slæk ɔf/
  • Informal
translation icon : aflojar
  • They say that one of the things that makes Weight Watchers effective is the regular weigh-ins; it's harder to slack off when you know somebody's going to be checking.

And if they slack off, they're probably going to go back down, right.

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Examples

  • This year I am committed to doing hard things... and not slack off.

    Blog text (34)
  • During the winter months, many students tend to slack off and not complete their assignments.

  • Then, parents sort of slack off and put the focus back on their own lives.

    Blog text (32)
  • I am in real estate, so I worked really hard for about 2 years before being able to slack off for a bit.

    Blog text (34)
  • And the fundamental research kind of slacked off and the companies went after scale up.

  • We get real busy with the early bird specials at four, but then around eight it starts to slack off.

    Fiction book (1999)
  • Laziness causes people to cut corners, to slack off, to waste time, and to contribute less.

  • I used to do daily readings of recovery literature, but I've slacked off over the years.

    Blog text (32)
  • Dr. Bettmann knows moments of despondency, his colleagues told us, usually when business has slacked off.

    Fiction book (1999)
  • After a busy first half of the year, sales began to slack off as summer approached.

Synonyms

to let up
vsto slack off
54 3.8

To become less strong, especially for bad weather, pain, or pressure

signals a general decrease, not only relief from unpleasantness
to fall off
vsto slack off
49 2.6

Become less in number, amount, or quality

is a general drop in amount, intensity, or activity without extra nuance
to wane
vsto slack off
48 6.4

To become less in size, amount, or strength

describes decrease in activity or intensity without implying slow natural fading
to abate
vsto slack off
23 6.8

To become less strong or severe and to make something do the same

describes a decrease in amount, intensity, or activity without causation focus
to drop off
vsto slack off
21 3.5

To become less in number or amount

refers to a decrease in general intensity or activity rather than count only
to fall away
vsto slack off
19 4.3

To become less in amount or quality

refers to a decrease in general activity or intensity, not size only
to ease off
vsto slack off
9 4.0

To become gradually less strong or severe

decreases amount, intensity, or activity without implying gentleness
to die away
vsto slack off
8 4.2

To become quieter and then stop

means decrease without necessarily vanishing or being limited to sounds
to slack
vsto slack off
3 5.3

To reduce effort, speed or attention

focuses on lowering amount, intensity, or activity generally
to drop away
vsto slack off
2 3.3

To become less over time

expresses a decrease in amount or intensity that may be faster
to slacken
vsto slack off
1 4.9

Become or make slower, for example the wind

is a broad decrease in amount, intensity, or activity
to slack up
vsto slack off
  • UK
1 5.7

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

is a general fall in amount, intensity, or activity
to slacken off
vsto slack off
3.9

To become less strong or active

decreases general amount, intensity, or activity without control focus

Antonyms

110 4.0

Make something stronger or more intense

How Intense

to ease up
57 3.7
to slack off
  • Informal
3 3.9
to subside
47 4.8
to fizzle out
  • Informal
8 5.3
to die out
47 3.7

Surface Forms

slack off infinitive
slacked off past participle
slacking off present participle
slacks off third person singular

Morphology

slack + off

The verb 'slack' means to let up or reduce effort and the particle 'off' adds a sense of moving away from full activity or intensity, so the combined meaning 'to decrease effort or activity' is directly derivable from the parts. This verb+particle composition is a common, predictable pattern in English, so a B1 learner who knows both constituents would readily infer the meaning.

Etymology

Slack off comes from the picture of a tight rope or line becoming loose: when the rope goes slack and the pull is taken off, it stops pulling and things slow down. That's why slack off means 'to become less strong or active'.