slack

Adjective

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

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.