“Themselves a band that likes to push the edge of the technology envelope, and who made video a major part of their performances 30 years ago, U2 opened Sphere with aplomb [əˈplɑːm] , but not necessarily full-bore success.” — Brad Auerbach, Spin, 6 Oct. 2023

aplomb [əˈplɑːm]
noun

Aplomb means “complete and confident composure or self-assurance” and is a synonym of poise.

If you do something with aplomb, you do it with composure and self-assurance—you do it with poise. This English noun aplomb was borrowed directly from French, where it carries the meanings of both “composure” and “perpendicularity.”

English