Adjacent
WordNet
adjective
(1) Near or close to but not necessarily touching
"Lands adjacent to the mountains"
"New York and adjacent cities"
(2) 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"
(3) Having a common boundary or edge; touching
"Abutting lots"
"Adjoining rooms"
"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"