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

Miller investigated whether negligence in Gwen’s care resulted in her death.

— Duaa Eldeib, ProPublica, 8 Nov. 2026
The lawsuit alleges excessive force, battery, negligence and violation of Maverick Lyon’s Fourth Amendment rights.

— Daniella Silva, NBC news, 5 Nov. 2026

Definition of negligence

Noun

The Bourne Identity actor—who also shares daughters Alexia, 27; Gia, 18; and Stella, 16, with Barroso—looked dapper in a black double-breasted blazer, matching slacks, and shiny black dress shoes.

— Lara Walsh, InStyle, 3 Nov. 2026
Damon is wearing a top hat, a white shirt with an ascot, tucked into a long coat with slacks.

— Rosy Cordero, Deadline, 1 Nov. 2026

Definition of slack

Noun

All of those children were known to the Department of Children and Families and had referrals for abuse or neglect.

— Kaitlin McCallum, Hartford Courant, 2 Nov. 2026
The building already has materials, dimensions, defects, histories, neighbors, owners, previous uses, and established patterns of maintenance or neglect.

— Julian Rose, Artforum, 1 Nov. 2026