revelatory
adjective formal uk/ˌrev.əˈleɪ.tər.i/ us/ˈrev.ə.lə.tɔːr.i/
揭示性的，揭露性的;透露内情的
making something known or showing something that was previously secret
It was a revelatory moment when I realized that there were other people who watched the show. 当我意识到还有其他人观看这个节目时，顿时眼前一亮。