impermissible

It is impermissible to smoke in this area.

Cheating on exams is impermissible in this school.

It is impermissible to park in front of the fire hydrant.

Using someone else's work without permission is impermissible.

It is impermissible to bring outside food into the cinema.

Violence is impermissible in any form.

It is impermissible to use offensive language in the workplace.

Trespassing on private property is impermissible.

It is impermissible to discriminate based on race.

It is impermissible to copy someone else's homework.