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slackness

/ˈslæknəs/ · slock·ness
noun
  1. A state of being idle or lacking energy; laziness. The company's slackness during the summer months led to a significant backlog of work.
  2. A lack of tightness or firmness; looseness. The fabric's slackness made it difficult to sew a straight line.
Did you know? The word 'slackness' has been used in various contexts, including business and sports, to describe a lack of motivation or energy.
Written by Lexi Wordsworth, Dictionary Editor 4 lookups Added Jul 30, 2026