Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “slacken”

slacken

verb [I or T] uk   /ˈslæk.ən/ us  

slacken verb [I or T] (LESS TIGHT)

to (cause to) become loose: Slacken the reins or you'll hurt the horse's mouth.

slacken verb [I or T] (LESS ACTIVE)

to (cause to) become slower or less active: He stooped to pick it up, without slackening his pace (= without walking more slowly). The pace of trading slackened during the winter months. The management expects demand to slacken (off) in the New Year. The car's speed slackened (off) as it went up a steep hill. Most people slacken off/up at the end of a day's work.
(Definition of slacken from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of slacken?
Browse related topics

You are looking at an entry to do with Increasing and decreasing speed of motion, but you might be interested in these topics from the Moving quickly and slowly topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “slacken” in other dictionaries

Word of the Day

bright spark

a person who is intelligent, and full of energy and enthusiasm

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More