- to make or become less active, vigorous, intense, etc.
- to make or become looser or less taut.
Origin of slacken
SynonymsSee more synonyms for slacken on Thesaurus.com
1, 2. relax, loosen, slack, abate.
2. tighten, tense.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for slackening
"I'm sorry, dear," he exclaimed, slackening his pace reluctantly.Changing Winds
St. John G. Ervine
To keep the business from slackening, Andre-Louis prepared a new scenario every week.Scaramouche
I had suffered too much; I wanted rest, woman's love, slackening off.Romance
Joseph Conrad and F.M. Hueffer
There was no sign of slackening speed and everything appeared to be all right.Cab and Caboose
After a time the animals seemed to him to be slackening their speed.The Pony Rider Boys in Texas
Frank Gee Patchin
- to make or become looser
- to make or become slower, less intense, etc
Word Origin and History for slackening
Online Etymology Dictionary, © 2010 Douglas Harper