dully adjective 1adverb 1forms 2 adjective1 •(no longer used) Dim, indistinct.Far off she seem'd to hear the dully sound / Of human footsteps fall. — 1832 adverb1 •In a dull manner; without liveliness; without lustre.The parson, all unaware, dully pursued his calling, perched above the exquisite derision of their glances. — 1930 formsmore dully · most dully