medieval, mediaeval 1. Of or relating to a period of time intervening between (periods designated as) ancient and modern; specifically, relating to, or characteristic of the Middle Ages. Also, of art, religion, etc.; resembling or imitative of that of the Middle Ages. 2. A person who lived in the Middle Ages; also, a person whose outlook or perspe... Found on http://www.wordinfo.info/words/index/info/view_unit/1271/3