Slack
Slack adjective - Failing to give proper care and attention.
Unoccupied and slack are semantically related. In some cases you can use "Unoccupied" instead an adjective "Slack".
Unoccupied
Unoccupied adjective - Not held or filled or in use.
Slack and unoccupied are semantically related. Sometimes you can use "Slack" instead an adjective "Unoccupied".
Cite this Source
Unoccupied and Slack. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/slack/unoccupied
Slack & Unoccupied. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/slack/unoccupied>.
Unoccupied or Slack. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/slack/unoccupied.
Google Ngram Viewer shows how "slack" and "unoccupied" have occurred on timeline