Forgetful
Forgetful adjective - Inclined to forget what one has learned or to do what one should.
Usage example: we become more forgetful as we get older
Slack is a synonym for forgetful in careless topic. In some cases you can use "Slack" instead an adjective "Forgetful", when it comes to topics like inattentive, tending to not remember.
Slack
Slack adjective - Failing to give proper care and attention.
Usage example: a building contractor known mainly for his firm's slack workmanship and slipshod construction
Forgetful is a synonym for slack in careless topic. You can use "Forgetful" instead an adjective "Slack", if it concerns topics such as inattentive.
Mutual synonyms
Cite this Source
Slack and Forgetful. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/forgetful/slack
Forgetful & Slack. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/forgetful/slack>.
Slack or Forgetful. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/forgetful/slack.
Google Ngram Viewer shows how "forgetful" and "slack" have occurred on timeline