Born in Toronto, Ontario, Adeney won a scholarship to the Ontario College of Art, where he studied printmaking under Nicholas Hornyansky and mural work with Will Ogilvie. In the early 1950s he studied at the Slade School of Art in London, England. A landscape, cityscape and figurative painter best known for his ink drawings, Adeney, considered a Realist, also works in oil, watercolour, and the graphic arts. Christopher Adeney, a well known Toronto-based artist, he visited the Arctic in 1986 with the Polar Continental Shelf Project to study and paint. He has exhibited in numerous solo and group shows in both Ontario and Quebec, and his paintings hang in corporate and institutional collections in Canada, United States, and France. He has received many awards, including the Governor-General's Canadian Society of Painter-Etchers and Engravers award. He is represented in the collection of Laval University.