Applying constant and enduring effort to a task or course of action; in a sedulous manner.
1827, Maria Elizabeth Budden, Nina, An Icelandic Tale, page 15:When the neighbours saw Mirbel thus sedulously adorning herself, they quickly discovered that she had ceased to think of her father—that she had ceased to mourn for him.
1914, Joyce, James, Dubliners, "An Encounter":We bought some biscuits and chocolate which we ate sedulously as we wandered through the squalid streets where the families of the fishermen lived.
1980, Douglas, William O., The Court Years 1939–1972:That court would sedulously avoid meeting contentious issues and would sit in resplendent dignity aloof from the issues of the day.