Sluggish and Slack

Sluggish

Sluggish adjective - Slow to move or act.
Usage example: reptiles are naturally sluggish at low temperatures

Slack is a synonym for sluggish in behaviour topic. In some cases you can use "Slack" instead the word "Sluggish" as an adjective or a noun, when it comes to topics like dull, inactive, increase. popular alternative

Nearby Words: sluggishness, sluggishly

Slack

Slack adjective - Failing to give proper care and attention.

Sluggish is a synonym for slack in lazy topic. You can use "Sluggish" instead the word "Slack" as an adjective or a noun, if it concerns topics such as loose, slow, increase. popular alternative

Cite this Source
Slack and Sluggish. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/sluggish/slack
Sluggish & Slack. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/sluggish/slack>.
Slack or Sluggish. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/sluggish/slack.
Google Ngram Viewer shows how "sluggish" and "slack" have occurred on timeline