Delian /ˈdiːliən/adjective 2noun 1forms 3 adjective2 •Of or relating to the Greek island of Delos.Trembling in every limb I raise my loud importunate cry, And in a sacred terror wait the Delian god’s reply. — 1928 •Relating to the music of Frederick Delius. noun1 •A native or inhabitant of Delos. formsDelians · more Delian · most Delian