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
-
The video of Rodrigues de Freitas falling to her death has gone viral on social media platforms, where internet users are describing her death as a surreal case of negligence.—
CBS News,
CBS News,
15 June 2026 -
Sacramento County jail records Saturday morning showed Merritt was booked on suspicion of felony hit-and-run resulting in death or permanent serious injury, felony vehicular manslaughter without gross negligence and misdemeanor driving without a valid license.—
Michael McGough,
Sacbee.com,
13 June 2026
Noun
-
Shop more sophisticated slacks inspired by Jennifer Aniston below.—
Emma Guillen,
PEOPLE,
13 June 2026
-
But the Spurs were outscored despite a 2-of-7 shooting start by New York's Jalen Brunson, with OG Anunoby and Josh Hart picking up the offensive slack.—
Andrew Greif,
NBC news,
9 June 2026
Noun
-
People with serious mental illness continue to suffer in jails repeatedly criticized for violence, neglect, isolation, staffing shortages, and inadequate mental health care.—
Justyna Rzewinski,
New York Daily News,
16 June 2026
-
Practically overnight, Sylvia’s cozy attitude toward the girl hardens into coolness, impatience and neglect.—
Natalia Winkelman,
Variety,
16 June 2026
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.
Cite this Entry
“Slackness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/slackness. Accessed 19 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
