"has been enjoined" is correct and usable in written English.
You can use it when you want to indicate that someone has been ordered to do something by a court of law. For example: "The defendant has been enjoined to pay the plaintiff $50,000 in damages."
He has been enjoined by judges from speaking the National Electrical Code, the Official Code of Georgia Annotated, and the European safety standard for baby pacifiers.
For much of the past decade, the audit profession has been enjoined to enter new and novel fields of assurance services.
A Queens slaughterhouse that had been selling thousands of pounds of uninspected poultry to local supermarkets has been enjoined from the practice by a court-approved decree announced Tuesday by federal prosecutors.
It has been enjoined specifically to adopt a more positive attitude toward international theological congresses, and to establish closer ties with the Pontifical Biblical Commission — in other words, to abandon its obstructive attitude toward modern theology and theologians.
For example, absent a waiver by the Commission, an investment adviser to mutual funds may no longer serve in that role if another entity, under common control, has been enjoined from acting in certain capacities.
"This is not a policy we support, and I would note that it has already been challenged in federal court, and some of the order has been enjoined at least temporarily," Blankfein said.
Commissions have been enjoined from enforcing confiscatory rates.
The order as modified is valid and its enforcement should not have been enjoined.
Ministers, officials and army officers have been enjoined to desist from any public expression of encouragement or indeed desire for an American attack on Iraq.
In the instant case, we do not have a situation in which rates as fixed by a Commission have been enjoined.
The Greeks were given to theoretical speculation about music; they had a system of notation, and they "practiced music," as Socrates himself, in a vision, had been enjoined to do.
