1. Relating to or belonging to the Middle Ages
   "Medieval scholars";
   - mediaeval
    
2. As if belonging to the Middle Ages; old-fashioned and unenlightened
   "a medieval attitude toward dating";
   - mediaeval, gothic
    
3. Characteristic of the time of chivalry and knighthood in the Middle Ages
   "medieval rites";
   - chivalric, knightly, mediaeval

See also: nonmodern, past

Encyclopedia: Medieval