exterior — Forming, situated on, or relating to the outside of something.
extreme — Reaching a high or the highest degree; very great.
adj mezzo
outer — situated on or toward the outside; external; exterior: outer garments; an outer wall.
outside — the outer side, surface, or part; exterior: The outside of the house needs painting.
border — The border between two countries or regions is the dividing line between them. Sometimes the border also refers to the land close to this line.
peripheral — pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
