First class
First class noun - Mail that includes letters and postcards and packages sealed against inspection.
Worst
Worst adjective - (superlative of `bad') most wanting in quality or value or condition.
First class is an antonym for worst.
Both terms in one sentence
- In X-Men: First Class, although the CIA staff in general acts like jerks most of the time, the worst is William Stryker Sr.
Source: Jerkass / Film
Cite this Source
Worst and First class. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/first_class/worst
First class & Worst. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/first_class/worst>.
Worst or First class. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/first_class/worst.
Google Ngram Viewer shows how "first class" and "worst" have occurred on timeline