pre-Roman
/priːˈrəʊmən/adjective
- of or relating to a period before the rise or dominance of ancient Rome, or before the conquest of a particular region by the ancient Romans(与)古罗马前(有关)的, (与)古罗马征服之前(有关)的:
the Celtic kingdoms of pre-Roman Britain.
古罗马征服之前不列颠的各凯尔特王国。