unpermissible
adjEtymology From un- + permissible.
1
Not permissible.
- For this was unpermissible, foolish, dangerous, and he meant to stop it in the bud.1910, Algernon Blackwood, The Wendigo:
- For not only did he find it piteous; but unseemly, unpermissible somehow, yet marvellously sweet, startling him out of all preconceived light diplomatic plans, plucking shrewdly at his complacently unawakened heart.1919, Lucas Malet, Deadham Hard: