Why did this thought never occur to me before? and again he told himself that it was impossible, that there would be something unnatural, and as it seemed to him dishonorable, in this marriage.
There are several military discharge types, which range from honorable to dishonorable.
"Louis XVI was executed because they said he was dishonorable and a criminal," came into Pierre's head, "and from their point of view they were right, as were those too who canonized him and died a martyr's death for his sake.
The body should never be left alone, which would be considered dishonorable.