Legitimate
Legitimate adjective - Permitted by law.
Sincere and legitimate are semantically related. In some cases you can use "Sincere" instead an adjective "Legitimate".
Sincere
Sincere adjective - Genuine in feeling.
Legitimate and sincere are semantically related. Sometimes you can use "Legitimate" instead an adjective "Sincere".
Mutual synonyms
Both words in one sentence
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The Brutes are shown to have legitimate grievances against the Elites, and to be fully capable of co-existing with other species in relatively sincere good faith under the right circumstances.
Source: Always Chaotic Evil -
He presumes, reasonably enough, that any confessions he heard, as long as they were sincere (and the assigned penances performed), would have been legitimate, and the sinners duly forgiven.
Source: Confessional
Cite this Source
Sincere and Legitimate. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/legitimate/sincere
Legitimate & Sincere. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/legitimate/sincere>.
Sincere or Legitimate. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/legitimate/sincere.
Google Ngram Viewer shows how "legitimate" and "sincere" have occurred on timeline