Long whist is an old card game that has lost its popularity over the years. It is a variant of the game of whist that is played with more than four players and requires an extended deck of cards. If you are looking for synonyms for long whist, you might consider terms like extended whist, marathon whist, or prolonged whist. These expressions convey the idea of a more extended and complex version of the classic card game. Other possible alternatives could be endurance whist, extended-play whist, or protracted whist. Although these phrases are not commonly used, they maintain the essence of long whist while offering a fresh take on the game.