For this was unpermissible, foolish, dangerous, and he meant to stop it in the bud.
"The Wendigo" by Algernon Blackwood
Then followed a silence, pregnant, surcharged; on Ivan's part almost unpermissible.
"The Genius" by Margaret Horton Potter
At first it shocked him almost to the point of heated protest, as against a thing unpermissible and indecorous.
"The History of Sir Richard Calmady" by Lucas Malet