1
as in loosens
to make less taut
you'll need to slacken the rope a bit to get it free of that post
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in slows
to cause to move or proceed at a less rapid pace
drivers need to slacken their speed as they approach the sharp curve
Synonyms & Similar Words
Antonyms & Near Antonyms
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Recent Examples of slackens
On DeFilippis’s stage (kept effectively earthy and stark by scenic designer Ashley Basile), the stakes are ratcheted up from the jump and the tension never slackens.
—
Sara Holdren, Vulture, 23 Mar. 2026
Electromagnetism and the weak interaction intensify, while the strong force slackens.
—Quanta Magazine, 11 Mar. 2026
The pacing slackens a little as the complicated process inches forward, but the ending tugs the heartstrings in enormously satisfying ways.
—David Rooney, HollywoodReporter, 10 Mar. 2026
With the help of Matt Mayer’s rhythmic editing and Tony Doogan’s string-torturing score, the intrigue never slackens.
—Bob Strauss, San Francisco Chronicle, 19 Aug. 2025
Sara Holdren, Vulture, 23 Mar. 2026
Electromagnetism and the weak interaction intensify, while the strong force slackens.
—Quanta Magazine, 11 Mar. 2026
The pacing slackens a little as the complicated process inches forward, but the ending tugs the heartstrings in enormously satisfying ways.
—David Rooney, HollywoodReporter, 10 Mar. 2026
With the help of Matt Mayer’s rhythmic editing and Tony Doogan’s string-torturing score, the intrigue never slackens.
—Bob Strauss, San Francisco Chronicle, 19 Aug. 2025
Recent Examples of Synonyms for slackens
Verb
-
The bill also loosens rules around building increasingly popular accessory dwelling units (ADUs) — such as granny flats, in-law suites or backyard cottages — alongside existing structures.—
Bob Woods,
CNBC,
29 Mar. 2026
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Other people’s reactions bleed into your own experience; the boundary between self and crowd loosens.—
Yook JiHun,
Popular Science,
26 Mar. 2026
Verb
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Sometimes the bridge going up pleasantly slows the ice cream store traffic during busy times, ice cream shop co-owner Colin Desmarais has said.—
Staff Report,
Hartford Courant,
11 Apr. 2026
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Disaster funding slows to a trickle The delays at FEMA are significantly longer than normal, even for an agency known to be administratively slow, according to emergency managers from half a dozen states.—
Lauren Sommer,
NPR,
10 Apr. 2026
Cite this Entry
“Slackens.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/slackens. Accessed 17 Apr. 2026.
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