documentary
adjective
doc·u·men·ta·ry
| \ ˌdä-kyə-ˈmen-tə-rē
, -ˈmen-trē, -kyü-\
, -ˈmen-trē, -kyü-\
Definition of documentary
(Entry 1 of 2)
1
: being or consisting of documents : contained or certified in writing
documentary evidence
2
: of, relating to, or employing documentation (see documentation sense 2) in literature or art
broadly
: factual, objective
a documentary film of the war