circumadˈjacent,a. [circum- 1.] Lying immediately around. 1762–71H. Walpole Vertue's Anecd. Paint. (1786) IV. 259 After the circumadjacent country had been shut out.1837Sir F. Palgrave Merch. & Friar iii. (1844) 102 All the circumadjacent lands and islands.