Did you know?

Click any word in a definition or example to find the entry for that word

slack

 - definition
Close

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary entries. Click on the T button in an entry to review the synonyms and related words for that meaning.

more
adjective slack pronunciation in British English /slæk/ 
Word Forms
Close
adjectiveslack
comparativeslacker
superlativeslackest
  1. 1
    loose and not pulled tight

    The fence consisted of two slack strands of barbed wire.

    The rope suddenly went slack.

    Her muscles felt slack.

  2. 2
    not taking enough care to make sure that something is done well

    slack safety standards

    Some slack defending allowed Valencia to score another goal.

  3. 3
    not as busy or successful as usual in business

    Business is usually slack in the winter.

    Demand for the product is slack.

derived word

slackness

noun [uncountable]

Open Dictionary

selfie stick

an expandable stick which you attach to a mobile phone or camera to help you take a selfie …

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog