unˈprefaced,ppl.a. (un-1 8.) [1775Ash.]1801Bloomfield Rural T. (1802) 51 [He] straight began..Th' unprefac'd History of his latter years.1859Hooker in Darwin Life & Lett. (1887) II. 242 The three volumes, unprefaced by this, would have choked any Naturalist.