unreasonable

This term carries a strong sense of frustration or injustice, often used when someone feels a boundary has been crossed or a request is unfair. It suggests a gap between what is expected by a rational person and what is actually being demanded. In legal or professional settings, it describes a lack of proportionality or a failure to meet a standard of fairness. It differs from "insane" or "irrational" by focusing more on the lack of fairness or practicality rather than a total break from reality.