well-maˈtured,ppl.a. 1676Evelyn Terra 53 Cast..on this a layer of well-matur'd Dung.1748W. Melmoth Fitzosborne Lett. lvi. (1749) II. 81 Sound thought and well-matured reflection.1897Century Mag. May 104 This quiet but intense thinking and the well-matured ideas which resulted from it.