Patent unreasonableness "was" the highest level of deference that the court could give to an ADM, prior to the Supreme Court's decision in "Dunsmuir v New Brunswick" (2008). Under this standard of review, a court would only substitute its own reasoning for the lower decision-maker's if it was so egregious as to be patently unreasonable. This standard was found to be dissatisfactory as it allowed certain decisions that were unreasonable but not patently unreasonable to be upheld, giving rise to situations where certain people were told to accept an irrational decision of an administrative body.