1
as in negligence
failure to take the care that a cautious person usually takes
considering the chemical company's slackness when it comes to safety, it's a wonder there hasn't been a catastrophe
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in slack
the extent to which something hangs or dips below a straight line
there's simply too much slackness in this clothesline
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for slackness
Noun
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In November 2025, a group of other families of campers who died also sued for negligence.—
Thao Nguyen,
USA Today,
24 Feb. 2026 -
OpenAI and the company’s CEO, Sam Altman, were named as defendants in several lawsuits that allege negligence, assisted suicide, involuntary manslaughter, wrongful death, and other product liability claims.—
Catherina Gioino,
Fortune,
23 Feb. 2026
Noun
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His sloped shoulders suggested bodily power that was sleepy and sly; his large head and dark, badly cut hair amplified the weight and solidity of him, but his lips were sensitive and a little slack, as if yearning for something he’d been long deprived of.—
Mary Gaitskill,
New Yorker,
22 Feb. 2026
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For the nicer restaurants, not too much to ask to require slacks and a nice shirt.—
Jessica Mekles,
FOXNews.com,
21 Feb. 2026
Noun
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Paxton’s near decade of abuse of the office and neglect of its fundamental responsibilities has caused extensive damage that will take time and good leadership to repair and rebuild.—
Eleanor Dearman,
Fort Worth Star-Telegram,
14 Feb. 2026
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Our infrastructure has failed to meet the demands of rapid expansion, as evidenced by the 12-year neglect of Eastland, which resulted in job losses and decreased tax revenue.—
Charlotte Observer,
Charlotte Observer,
14 Feb. 2026
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Cite this Entry
“Slackness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/slackness. Accessed 25 Feb. 2026.
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