I was going to include an other word in my answer but I've been forbidden from using it.
Forbidden: Not allowed, prohibited. You use the word forbidden as follows: Farmer Jones has forbidden us from entering his vegetable patch.
The cookie was forbidden.
I was forbidden to eat the jellybeans.
It is forbidden to cheat during a test.
you are forbidden to read this answer lol :)
It was forbidden for Frank to go into the mine shaft.
The Forbidden Kingdom is huge.She was forbidden from seeing him again.Swearing in public is forbidden.
Kingfisher birds are very beautiful.It is forbidden to hunt kingfisher birds in this country.
Running in the library is expressly forbidden.
I am forbidden to say something, if it is rude, or offensive. (this has nothing to do with me) xx
Schoolteachers would tell you that it is forbidden to begin a sentence with the word 'and'. This could well be a myth as writers have been using it this way for many years. However, you should be encouraged to form more complex sentences by not allowing the use of a conjunction to start a sentence
A good way to use retentive in a sentence is... "How do you use the word retentive in a sentence?"