1. of, relating to, or serving as documentation; providing or consisting of documents or records
Usage: formal; often used in academic, legal, or technical contexts

Examples

• The museum's documentational materials include photographs, letters, and artifacts from the 19th century.
• She compiled a documentational record of the project's progress for the final report.
• The documentational evidence supported the historian's claims about the event.
• Their documentational approach to research ensured every fact was backed by primary sources.
• The library maintains a documentational collection of local history.