QUADRENNIAL Meaning of QUADRENNIAL in English [ kwɒ'drɛnɪəl ]■ adjective lasting for or recurring every four years.Derivatives~ly adverb OriginC17: from L. quadrennium (from quadri- 'four' + annus 'year') + -al . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004