Definition of "revealing"

Lest anyone on the left think that Tucker [Carlson] and his friends are potential anti-capitalist allies, their specific objections to corporate capitalism are revealing. To them, the real issue is not labor exploitation, but rather the “corporate alliance with the progressive left.”

2019 July 24, David Austin Walsh, “Flirting With Fascism”, in Jewish Currents‎

In these letters, and the remembered conversations, we have fuller revealings of the inner man, greater depth of discovery into that vast and labyrinthine mind […]

1836, William Tait, Mrs. Christian Isobel Johnstone, Tait's Edinburgh Magazine, volume 3, page 113