First class and Thick

Opposite meaning terms

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

Show all Definitions

Thick is an antonym for first class in excellent topic.

Thick adjective - Having or being of relatively great depth or extent from one surface to its opposite.

Show all Definitions

First class is an antonym for thick.

Cite this Source

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

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

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

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