From un- + documentary. <span class="searchmatch">undocumentary</span> (comparative more <span class="searchmatch">undocumentary</span>, superlative most <span class="searchmatch">undocumentary</span>) Not documentary....
documentary hypothesis nondocumentary predocumentary quasidocumentary <span class="searchmatch">undocumentary</span> of, related to or based on documents/that serves to document something...