effectively /ɪˈfɛktɪvli/ adverb2 •In an efficient or effective manner; with powerful effect.The nightclubs generally provide liquor (at a price), pretty girls who are clad diaphanously but extremely effectively, a tiny space in which to dance [...] and food[.] — 1946 •Essentially, in effect, for all practical purposes.On paper, the answer seems to be yes, but, effectively, the answer is no. formsmore effectively · most effectively