Slack
Slack adjective - Failing to give proper care and attention.
Unproductive and slack are semantically related. In some cases you can use "Unproductive" instead an adjective "Slack".
Unproductive
Unproductive adjective - Producing inferior or only a small amount of vegetation.
Slack and unproductive are semantically related. Sometimes you can use "Slack" instead an adjective "Unproductive".
Cite this Source
Unproductive and Slack. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/slack/unproductive
Slack & Unproductive. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/slack/unproductive>.
Unproductive or Slack. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/slack/unproductive.
Google Ngram Viewer shows how "slack" and "unproductive" have occurred on timeline