adjacent

nearest in space or position; immediately adjoining without intervening space; "had adjacent rooms"; "in the next room"; "the person sitting next to me"; "our rooms were side by side"

having a common boundary or edge; abutting; touching; "Rhode Island has two bordering states; Massachusetts and Conncecticut"; "the side of Germany conterminous with France"; "Utah and the contiguous state of Idaho"; "neighboring cities"

near or close to but not necessarily touching; "lands adjacent to the mountains"; "New York and adjacent cities"