First class and Matchless

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

Matchless and first class are semantically related. in excellent topic. In some cases you can use "Matchless" instead an adjective phrase "First class", when it comes to topics like most excellent.

Matchless adjective - Having no equal or rival for excellence or desirability.

First class and matchless are semantically related. Sometimes you can use "First class" instead an adjective "Matchless".

Nearby Word: matchlessly