Elinor wanted very much to know, though she did not chuse to ask, whether Edward was then in town; but nothing would have induced Fanny voluntarily to mention his name before her, till able to tell her that his marriage with Miss Morton was resolved on, or till her husband’s expectations on Colonel Brandon were answered; because she believed them still so very much attached to each other, that they could not be too sedulously divided in word and deed on every occasion.
There are no more uses of "sedulous" in the book.
Show samples from other sources
The voice was overly ingratiating, sedulously sweet.
William Styron -- Sophie’s Choice
She wondered what sort of herbs they were which the old man was so sedulous to gather.