Adjective
1. 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"2. 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"3. near or close to but not necessarily touching;
"lands adjacent to the mountains""New York and adjacent cities"