slack 1 of 3

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slack

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noun

1
as in latitude
an allowable margin of freedom or variation our boss doesn't cut us any slack when it comes to being back from lunch on time

Synonyms & Similar Words

2
as in slackness
the extent to which something hangs or dips below a straight line take up the slack of a rope

Synonyms & Similar Words

Antonyms & Near Antonyms

3

slack

3 of 3

verb

as in to loosen
to make less taut the skipper ordered the crew to slack off the sheets on the mainsail

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word slack different from other adjectives like it?

Some common synonyms of slack are lax, neglectful, negligent, and remiss. While all these words mean "culpably careless or indicative of such carelessness," slack implies want of due or necessary diligence or care.

slack workmanship

When might lax be a better fit than slack?

While in some cases nearly identical to slack, lax implies a blameworthy lack of strictness, severity, or precision.

a reporter lax about accurate quotation

When could neglectful be used to replace slack?

The words neglectful and slack can be used in similar contexts, but neglectful adds a more disapproving implication of laziness or deliberate inattention.

a society callously neglectful of the poor

In what contexts can negligent take the place of slack?

While the synonyms negligent and slack are close in meaning, negligent implies inattention to one's duty or business.

negligent about writing a note of thanks

When is it sensible to use remiss instead of slack?

The synonyms remiss and slack are sometimes interchangeable, but remiss implies blameworthy carelessness shown in slackness, forgetfulness, or neglect.

had been remiss in their familial duties

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of slack
Adjective
Biden’s resting expression of slack confusion was almost as unnerving as his faltering efforts to make a clear and vivid case for his reëlection. The Editors, The New Yorker, 29 Sep. 2024 Instead, Joanna suggests treating slack skin with facial massage. Photo: Gotham/gc Images., refinery29.com, 8 Feb. 2024
Noun
Her appearances have been accompanied by stylish, noir chic ensembles: a button-up white top and skinny black tie here, a glen plaid gray jacket and slacks there. Taijuan Moorman, USA TODAY, 14 Feb. 2025 Make sure there’s no slack in the straps. Squeeze the muscles in your upper body, core, and lower body, then pull the straps down and back toward your hips. Danielle Zickl, SELF, 7 Feb. 2025
Verb
My own interests as a collector shifted back to Rolex sport watches precisely because the prices have fallen, this my attempt to take advantage of slacking prices for these off-trend neo-vintage pieces. Allen Farmelo, Robb Report, 17 Dec. 2024 Brian Snyder | Reuters Job openings rose in October while hiring fell, providing more data as the Federal Reserve watches for signs of tightness or slack in the labor market before meeting next week. Kristian Burt, CNBC, 4 Dec. 2024 See All Example Sentences for slack
Recent Examples of Synonyms for slack
Adjective
  • There is also a great bar hidden along the hotel’s lazy river pool, which is a big hit with kids, but adults will love the bar.
    Larry Olmsted, Forbes, 27 Feb. 2025
  • Many people assume that kids in Passenger Mode are lazy.
    Jenny Anderson, The Atlantic, 26 Feb. 2025
Adjective
  • Both are made from a water- and rip-resistant material that’s flexible.
    Rylee Johnston, Travel + Leisure, 1 Mar. 2025
  • This test involves inserting a long, flexible tube called an endoscope down your throat to see your esophagus and stomach.
    Lindsay Curtis, Health, 1 Mar. 2025
Noun
  • For those in northern latitudes, tonight could bring a chance to witness the northern lights.
    Daisy Dobrijevic, Space.com, 4 Mar. 2025
  • Back on board, refuel with the world’s only Alain Ducasse restaurant at sea, which elevates fine dining to new latitudes.
    Jennifer Kester, Forbes, 4 Mar. 2025
Verb
  • The month when winter’s icy grip starts to loosen, and the promise of spring is just around the corner.
    Matt Rozo, The Mercury News, 28 Feb. 2025
  • The firings come as Meta is undergoing sweeping changes, including loosening restrictions on online speech, scaling back diversity initiatives, rolling back its fact-checking program, and aligning more closely with former President Donald Trump’s administration.
    Bruce Gil, Quartz, 27 Feb. 2025
Adjective
  • She was charged with a DUI and DWI, negligently driving a vehicle in a careless and imprudent manner, endangering property, life, and person, as well as recklessly driving a vehicle in wanton and willful disregard for the safety of persons and property.
    DeMicia Inman, VIBE.com, 28 Feb. 2025
  • On March 19, 2024, Huger was charged with a DUI and DWI on the counts of: negligently driving a vehicle in a careless and imprudent manner, endangering property, life, and person, as well as recklessly driving a vehicle in wanton and willful disregard for the safety of persons and property.
    Gabriela Silva, TVLine, 26 Feb. 2025
Adjective
  • As for bags, the Script logo shopper was made in an even lighter, more relaxed shopping bag in an allover calfskin leather, suede or pony skin, while the Flap Bag reinterpreted a classic camera bag in smooth calfskin leather.
    Stephen Garner, WWD, 3 Mar. 2025
  • When cruising at more relaxed speeds, the car soaked up the decidedly rough road surfaces extremely well for a car with such petite dimensions.
    Tim Stevens, Ars Technica, 3 Mar. 2025
Adjective
  • As the pig slowly roasts in an imu pit and the partygoers cut loose, the celebration boils over when Ryan uncovers the missing memory of when his life took a tragic turn.
    Anthony D'Alessandro, Deadline, 7 Mar. 2025
  • The film feels wild and loose when four characters are shouting over each other at once.
    Mark Olsen, Los Angeles Times, 7 Mar. 2025
Noun
  • One of five fireplaces throughout the home keeps the space warm, while picture windows and French windows frame the landscape.
    Demetrius Simms, Robb Report, 9 Mar. 2025
  • The crafts have been observed to travel within clear spheres, and scientists now believe that space and time function differently inside those bubbles.
    Selome Hailu, Variety, 9 Mar. 2025

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Cite this Entry

“Slack.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/slack. Accessed 12 Mar. 2025.

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