EFFECTUAL Meaning of EFFECTUAL in English [ ɪ'fɛktʃʊəl , -tjʊəl ]■ adjective1》 effective. 2》 Law (of a legal document) valid or binding.Derivatives~ity noun~ly adverb~ness noun Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004