Diligent and Thoughtless
Opposite meaning words
Diligent
Thoughtless
Thoughtless adjective - Showing a lack of manners or consideration for others.
Diligent is an antonym for thoughtless.
Cite this Source
Thoughtless and Diligent. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/diligent/thoughtless
Diligent & Thoughtless. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/diligent/thoughtless>.
Thoughtless or Diligent. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/diligent/thoughtless.
Google Ngram Viewer shows how "diligent" and "thoughtless" have occurred on timeline