1) Like a castle 2) Like a fortified castle 3) Like a medieval castle 4) Like many a castle 5) Like many a protected castle 6) Like most castles 7) Like old castles 8) Like some castles 9) Like some fortresses 10) Protected 11) Secure 12) Surrounded by a ditch 13) Surrounded by a wide ditch 1) Protected 
[adj] - protected by a deep wide ditch usually filled with water
adjective protected by a deep wide ditch usually filled with water