Hardy was educated at Herve, before starting at the University of Louvain in 1886, studying law. After getting his doctorate he returned to Dison, where he carried on his literary work as well as working as a lawyer.
Hardy was editor or assistant editor of several literary journals from 1900 onwards, including Rappel de Charleroi, Dépêche de Liège and the Journal de Bruxelles.
In 1931 Hardy received the Grand Prix de Langue française from the French Academy. He was the first Belgian to win the prize, and he won it for his poem "Le Cortège des mois". In 1935 he married Madeleine Verhelst. In 1940, they escaped to Issigeac, France. After his wife's death, in 1941, he married Germaine Van Den Boeck.
In May 1954 he was made a Freeman of the City of Dison, and died at Laeken on June 19 of that year.
Charles Ranhofer, chef at Delmonico's honoured Hardy early in his publishing career by naming a goose liver pate after him, and Ranhofer's book "The Epicurean", also lists a chicken dish, Cotelettes De Poulet A La Adolphe Hardy.
- "Biography, Department of Cultural Affairs, Province of Luxembourg". Archived from the original on 2007-10-17. Retrieved 2011-04-16.
- Food named after famous people
- "A.S.B.L « Les amis d'Adolphe Hardy »". Retrieved 16 April 2011.
- Ranhofer, Charles (1894). The Epicurean : a complete treatise of analytical and practical studies on the culinary art.. New York : Charles Ranhofer, 682 West End Avenue. p. 687.