Credible and First class

Opposite meaning terms

Credible adjective - Worthy of being accepted as true or reasonable.

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First class is an antonym for credible.

First class noun - Mail that includes letters and postcards and packages sealed against inspection.

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Credible is an antonym for first class in amazing topic.

Cite this Source

First class and Credible. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/credible/first_class

Credible & First class. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/credible/first_class>.

First class or Credible. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/credible/first_class.

Google Ngram Viewer shows how "credible" and "first class" have occurred on timeline