- Vichyssois⇄adj. 1. of or having to do with the city of Vichy in central France.
2. of or supporting the Vichyite government.
Ex. Later still as Nuncio in Paris, he defended the accused Vichyssois bishops (London Times). - Vichyssois⇄noun 1. a native or inhabitant of the city of Vichy.
2. Vichyite. - Vichyssois⇄Vichyssois, adjective, noun.