Variant of slacken
- to become less active, intense, brisk, etc.: slackening trade
- to become less tense; loosen, as rope
Origin: from slack
- to reduce the intensity or severity of; retard; abate; moderate
- to reduce the tension of; relax; loosen: to slacken one's grip
- slackener noun
Used by arrangement with John Wiley & Sons, Inc.