First class and Nonessential

Opposite meaning terms

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

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Nonessential is an antonym for first class in topics: superior, eminent.

Nonessential adjective - Not needed by the circumstances or to accomplish an end.

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First class is an antonym for nonessential.

Cite this Source

Nonessential and First class. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/first_class/nonessential

First class & Nonessential. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/first_class/nonessential>.

Nonessential or First class. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/first_class/nonessential.

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