splinterless,a.|ˈsplɪntəlɪs| [f. splinter v. + -less.] Of glass: guaranteed not to break into splinters; = splinter-proof a. 2 (now the more usual term). 1928Sunday Express 15 Jan. 6 The manufacture of splinterless glass.1928Daily Express 19 June 3 A splinterless shock-proof safety glass.