SAGACIOUS Meaning of SAGACIOUS in English [ sə'geɪʃəs ]■ adjective having or showing good judgement.Derivatives~ly adverbsagacity noun OriginC17 (earlier (C15) as sagacity ): from L. sagax , sagac- 'wise' + -ious . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004