Monumental
Monumental adjective - Having great meaning or lasting effect.
Usage example: the moon landing was seen as a monumental event in human history
Sincere and monumental are semantically related. In some cases you can use "Sincere" instead an adjective "Monumental".
Nearby Words: monument, monumentally
Sincere
Sincere adjective - Genuine in feeling.
Monumental and sincere are semantically related. Sometimes you can use "Monumental" instead an adjective "Sincere".
Mutual synonyms
Both words in one sentence
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While being a monumental Unreliable Expositor makes it difficult to know when she's being sincere, she really does seem regretful about trying to kill Chell (it being part of the testing procedure) and her unexpected retaliation.
Source: Ho Yay / Video Games
Cite this Source
Sincere and Monumental. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/monumental/sincere
Monumental & Sincere. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/monumental/sincere>.
Sincere or Monumental. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/monumental/sincere.
Google Ngram Viewer shows how "monumental" and "sincere" have occurred on timeline