princessly adjective 1adverb 1forms 2 adjective1 •Befitting a princess; noble, dainty, etc.I sincerely believe she should kiss us all, it's her princessly duty. — 2019 adverb1 •(rare) In the manner of a princess.THERESA BOOTH YANCEY among the princessly dressed at Sunday’s “Tea” talking of plans to motor east. — 1954 formsmore princessly · most princessly