slackness

0 antonyms and opposites of slackness, grouped by meaning.

Noun — The state of being slack; the quality of having slack.

We haven't recorded synonyms for slackness yet. You can still read its full definition, where it comes from, or words that rhyme with it.

Etymology

From Middle English slacnesse, slakenes, slaknesse; equivalent to slack + -ness. Compare Old English slæcnes.