documental adjective. 
[dɒkjʊ'mɛnt(ǝ)l] L16.[from DOCUMENT noun + -AL1.]1.  Instructive; didactic. 
L16-E17.2.  Of or pertaining to documents; documentary. 
E19. ■   docu'mentalist noun a person engaged in documentation 
M20.  [TahlilGaran] English Dictionary ▲