First class and False

Opposite meaning terms

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

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False is an antonym for first class in honorable topic.

False adjective - Not being in agreement with what is true.

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First class is an antonym for false.

Cite this Source

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

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

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

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