adjacent /əˈd͡ʒeɪ.sənt/adjective 3preposition 2noun 1forms 1 adjective3 •Lying next to, close, or contiguous; neighboring; bordering on.Because the conference room is filled, we will have our meeting in the adjacent room. •Just before, after, or facing.The picture is on the adjacent page. •[after a noun] (figurative) Related to; suggestive of; bordering on.It would be false to suggest CBD is nothing more than an obsession for reiki-adjacent bicoastal millennials. — 2018 preposition2 •Next to; beside.The house adjacent to the school was demolished.A notice was sent to the house adjacent the school. •(figurative) Related to; suggestive of; bordering on. noun1 •Something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite.Again, the key colors have twice the area of the adjacents. — 1980 formsadjacents