slack

From Wiktionary

Pronunciation[change]

Adjective[change]

Positive
slack

Comparative
slacker

Superlative
slackest

  1. If something is slack, it hangs loose and is not held tight.
    Bring the boats closer together so that the rope between them becomes slack.

Verb[change]

Plain form
slack

Third-person singular
slacks

Past tense
slacked

Past participle
slacked

Present participle
slacking

  1. To slack is to be lazy and avoid doing work.
    Once he stopped slacking on his homework his grades improved.