Careless and Thoughtful
Opposite meaning words
Careless
Careless adjective - Not paying or showing close attention especially for the purpose of avoiding trouble.
Usage example: a careless mistake that caused the plane to crash
Thoughtful
Thoughtful adjective - Taking heed; giving close and thoughtful attention.
Cite this Source
Thoughtful and Careless. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/careless/thoughtful
Careless & Thoughtful. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/careless/thoughtful>.
Thoughtful or Careless. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/careless/thoughtful.
Google Ngram Viewer shows how "careless" and "thoughtful" have occurred on timeline