backside /ˈbækˌsaɪd/noun 5adjective 1forms 1 noun5 •The back side of anything, the part opposite its front.I gazed uncomprehendedly at the unfinished backside of the wall of the next room and wondered what had happened to my face. — 1987 •(informal, euphemistic) A person's buttocks.Having ridden the horse all day for the first time, I had painful blisters on my backside. •The back side of an estate: the backyard and outbuildings behind a main house, especially (UK dialect, euphemistic) an outhouse.The building's backside faced an alley and was covered in grime and graffiti. •(figurative) The reverse or opposite of anything....to endorse him on the backside of posterity, not a golden, but a brazen Asse... — 1645 •(no longer used) The back side of a page: a verso. adjective1 •Approaching an obstacle backward. formsbacksides
