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
Its characters alternate between business-casual (Washington enters tucking a dress shirt into slacks) and contemporary military fatigues. Daniel D'addario, Variety, 24 Mar. 2025 Hanging space is especially useful for storing slacks, dresses, tops, and suits. Brittany Vanderbill, Better Homes & Gardens, 20 Mar. 2025
Verb
But sales started slacking during the recessions in the early 2000s and never really recovered, Evans said. Jeanette Marantos, Los Angeles Times, 1 Jan. 2025 The story here is simple: Boston is relying too much on the three-point shot and has started to slack on the defensive end. Hunter Felt, Forbes, 27 Dec. 2024 See All Example Sentences for slack
Recent Examples of Synonyms for slack
Adjective
  • For those who prefer a little more structure to their days, the resort has all kinds of other tricks up its sleeve, including an expansive waterpark featuring a lazy river, several waterslides, and adults-only pools surrounded by cabanas and day beds.
    Tara Massouleh McCay, Southern Living, 3 Apr. 2025
  • Attractions include a one-acre wave pool, lazy river, and Summit Plummet, one of the tallest and fastest free-fall body slides in the world.
    Carly Caramanna, Travel + Leisure, 2 Apr. 2025
Adjective
  • These include widespread access to affordable childcare, generous parental leave shared between both parents, and flexible work arrangements.
    Newsweek Staff, MSNBC Newsweek, 5 Apr. 2025
  • One reason for this is that estrogen helps keep blood vessels flexible and supports the production of nitric oxide, a molecule that allows vessels to relax and maintain healthy blood flow.
    Matthew Nudy, The Conversation, 4 Apr. 2025
Noun
  • The times and dates given apply to mid-northern latitudes.
    Jamie Carter, Forbes.com, 7 Apr. 2025
  • Sun Sentinel Tweaks to Florida’s Live Local Act may boost developers’ options but frustrate cities Florida developers could gain more latitude from legislative bills this year that aim to piggyback off the state’s law to increase affordable housing.
    South Florida Sun Sentinel, Sun Sentinel, 4 Apr. 2025
Verb
  • There's a flexible hose to nab hard-to-reach messes, a transparent crevice tool for corners and sofa cushions, as well as a dust brush to loosen hair and dust from upholstery.
    Clara McMahon, People.com, 6 Apr. 2025
  • In 1992, President Hafez al-Assad — the father of Bashar al-Assad, who was overthrown last year — loosened the limits.
    Ephrat Livni, New York Times, 5 Apr. 2025
Adjective
  • She was cited with careless driving, the sheriff’s office said.
    Mark Price, Miami Herald, 8 Apr. 2025
  • Following the accident, the driver, a 61-year-old woman, was cited with careless driving and cooperated with investigators at the scene, the sheriff’s office said.
    Sam Gillette, People.com, 8 Apr. 2025
Adjective
  • Take enough time to have regular and relaxed bowel movements.
    Cristina Mutchler, Health, 8 Apr. 2025
  • In terms of design, the waterfall look of the nightstands fits into today’s obsession with midcentury modern, and the curved effect makes the room feel that much more soft and relaxed.
    Bryce Jones, Better Homes & Gardens, 8 Apr. 2025
Adjective
  • That film was the third in Trier’s loose Oslo trilogy and was co-written with his long-time collaborator Eskil Vogt, who is also a co-writer on Sentimental Value.
    Max Goldbart, Deadline, 10 Apr. 2025
  • Collins went on to join another funk pioneer: George Clinton, whose alternating bands Parliament and Funkadelic were innovating a looser, more improvisational and funnier style that would help define Black music in the ’70s.
    Steve Knopper, Billboard, 9 Apr. 2025
Noun
  • But breaking into this space requires a strategic approach and a willingness to redefine traditional leadership.
    Alexander Puutio, Forbes.com, 2 Apr. 2025
  • Sure, that scene between Robert De Niro and Al Pacino takes up a lot of space when talking about Michael Mann's seminal crime drama.
    Brian Truitt, USA Today, 2 Apr. 2025

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Cite this Entry

“Slack.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/slack. Accessed 16 Apr. 2025.

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