Helpful \Help"ful\, a. Furnishing help; giving aid; assistant; useful; salutary. Heavens make our presence and our practices Pleasant and helpful to him! --Shak. -- {Help"ful*ly}, adv. -- {Help"ful*ness}, n. --Milton.
helpfully adv : in a helpful manner; "the subtitles are helpfully conveyed" [ant: {unhelpfully}]