First class and Undeserved

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

Undeserved and first class are semantically related. In some cases you can use "Undeserved" instead an adjective phrase "First class".

Undeserved adjective - Not deserved or earned.

First class and undeserved are semantically related. Sometimes you can use "First class" instead an adjective "Undeserved".

Nearby Words: undeserving, undeservedly