SLACKNESS Synonyms: 61 Similar and Opposite Words

slackness

noun

Definition of slackness

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

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

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 slackness In the games so far, there have been quite a few fumbles and an apparent slackness of mind and limb. — E. Tammy Kim, New Yorker, 24 June 2026

Recent Examples of Synonyms for slackness

Noun

The jury determined that Meta and YouTube were negligent in the design or operation of their respective platforms, and that the negligence was a substantial factor in causing harm to the plaintiff.

— ABC News, ABC News, 17 Aug. 2026
Nuisance, negligence and harm to residents The largest set of claims in the lawsuit has to do with arguing that the data center damages residents’ health, futures and quality of life in the areas closest to the 400-acre hyperscale AI factory.

— Ilana Arougheti Updated August 14, Kansas City Star, 14 Aug. 2026

Definition of negligence

Noun

His assistant coaches, mostly a group of his former Granada Hills players, have to pick up the slack sometimes with the subsequent practices early in the following week.

— Los Angeles Times, Los Angeles Times, 20 Aug. 2026
Modern management has spent 50 years waging a largely successful war on slack.

— Dr. Aditya Vikram Kashyap, Forbes.com, 20 Aug. 2026