First class and Imperfect

Opposite meaning terms

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

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Imperfect is an antonym for first class in topics: superior, excellent, brand-new.

Imperfect adjective - Having a fault.

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First class is an antonym for imperfect.

Nearby Words: imperfection, imperfectly

Cite this Source

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

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

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

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