Credible
Credible adjective - Worthy of being accepted as true or reasonable.
Sincere and credible are semantically related. in reliable topic. In some cases you can use "Sincere" instead an adjective "Credible", when it comes to topics like believable.
Mutual synonyms
Cite this Source
Sincere and Credible. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/credible/sincere
Credible & Sincere. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/credible/sincere>.
Sincere or Credible. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/credible/sincere.
Google Ngram Viewer shows how "credible" and "sincere" have occurred on timeline