Conscientious and Careless

Opposite meaning words

Conscientious adjective - Taking, showing, or involving great care and effort.

Usage example: a counselor who serves patients by first being a conscientious listener

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Careless is an antonym for conscientious in topics: thorough, moral.

Careless adjective - Failing to give proper care and attention.

Usage example: a careless effort that made an unnecessary mess

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Conscientious is an antonym for careless.

Nearby Words: care, careful, carelessly, carelessness

Cite this Source

Careless and Conscientious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/conscientious/careless

Conscientious & Careless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/conscientious/careless>.

Careless or Conscientious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/conscientious/careless.

Google Ngram Viewer shows how "conscientious" and "careless" have occurred on timeline