All-time and First-class

All-time

All-time adjective - Unsurpassed in some respect up to the present.

First-class and all-time are semantically related. In some cases you can use "First-class" instead an adjective phrase "All-time".

First-class

First-class adjective - Of the very best kind.

All-time and first-class are semantically related. Sometimes you can use "All-time" instead an adjective phrase "First-class".
Cite this Source
First-class and All-time. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/all-time/first-class
All-time & First-class. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/all-time/first-class>.
First-class or All-time. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/all-time/first-class.