verb as in do little or nothing; loosen
But suppose you can't; suppose trade slackens, or Larry takes a notion to a new helper.
If he slackens up you notice a visible reduction in your pancake pile.
When prices rise above a certain level, demand slackens or ceases, and prices are inevitably lowered.
When the effervescence slackens the clamp is opened and the greater part of the remaining acid run in.
It goes up and down, down and up; and not until it slackens a little can reason intervene and bring it to its normal level.
On this page you'll find 69 synonyms, antonyms, and words related to slackens, such as: abate, decrease, diminish, dodge, drop off, and dwindle.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.