Quack and Sincere

Opposite meaning words

Quack adjective - Medically unqualified.

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Sincere is an antonym for quack in counterfeit topic.

Nearby Words: quackery, quacking

Sincere adjective - Genuine in feeling.

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Quack is an antonym for sincere.

Nearby Words: sincerely, sincerity

Cite this Source

Sincere and Quack. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/quack/sincere

Quack & Sincere. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/quack/sincere>.

Sincere or Quack. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/quack/sincere.

Google Ngram Viewer shows how "quack" and "sincere" have occurred on timeline