De rigueur and Done

De rigueur adjective - Following the established traditions of refined society and good taste.

Done and de rigueur are semantically related in necessary topic. In some cases you can use "Done" instead an adjective phrase "De rigueur". informal substitute

Done adjective - Brought or having come to an end.

De rigueur and done are semantically related in acceptable topic. You can use "De rigueur" instead an adjective "Done".