1. as if belonging to the Middle Ages
old-fashioned and unenlightened

e.g. a medieval attitude toward dating

Synonym: mediaevalgothic

2. characteristic of the time of chivalry and knighthood in the Middle Ages

e.g. chivalric rites
the knightly years

Synonym: chivalricknightly

3. relating to or belonging to the Middle Ages

e.g. Medieval scholars
Medieval times

Synonym: mediaeval