Revelatory means showing something that had not been understood before. A revelatory book.
It is stronger than informative, since it changes how everything else looks. A revelatory experience is often about something the person already knew and had not seen.
1adjectiverevelatoryShowing something that had not been understood before.
“The last chapter was revelatory and the rest was ordinary.”
revelatory is a quality.
Latin revelatorius, from revelare, to unveil, from velum, a veil.
Latin
revēlātōrius
English, today
revelatory
Latin revēlātōrius. by surface analysis, revelat(e) + revelate + ory.
Etymology from Wiktionary, CC BY-SA