Slack
Slack adjective - Failing to give proper care and attention.
Unfulfilling and slack are semantically related. In some cases you can use "Unfulfilling" instead an adjective "Slack".
Unfulfilling
Slack and unfulfilling are semantically related. Sometimes you can use "Slack" instead an adjective "Unfulfilling".
Mutual synonyms
Cite this Source
Unfulfilling and Slack. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/slack/unfulfilling
Slack & Unfulfilling. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/slack/unfulfilling>.
Unfulfilling or Slack. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/slack/unfulfilling.
Google Ngram Viewer shows how "slack" and "unfulfilling" have occurred on timeline