When faced with an extortionate demand, there are several ways to describe it. Egregious, exorbitant, and outrageous are all suitable synonyms. These words convey a sense of excessiveness and unfairness, highlighting the unreasonable nature of the demand. Other options include unreasonable, inflated, and unjustifiable, which similarly emphasize the lack of justification for such a request. In some cases, you may also use the term rip-off or scam to describe an extortionate demand, implying deceit or fraud. Ultimately, when encountering such a demand, it's important to use strong, direct language to convey your displeasure and ensure that you're not taken advantage of.