Conscientious
Conscientious adjective - Guided by or in accordance with one's sense of right and wrong.
Sincere and conscientious are semantically related. In some cases you can use "Sincere" instead an adjective "Conscientious".
Sincere
Sincere adjective - Genuine in feeling.
Conscientious and sincere are semantically related. Sometimes you can use "Conscientious" instead an adjective "Sincere".
Mutual synonyms
Related pairs
Both words in one sentence
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Similarly, the rewards in heaven are meted out the same way: those who are sincere and conscientious followers of God will enjoy a place of greater honor than those who merely pay lip service to their faith.
Source: All Crimes Are Equal
Cite this Source
Sincere and Conscientious. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/conscientious/sincere
Conscientious & Sincere. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/conscientious/sincere>.
Sincere or Conscientious. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/conscientious/sincere.
Google Ngram Viewer shows how "conscientious" and "sincere" have occurred on timeline