Prescriptivistic

Perhaps once more the somewhat prescriptivistic nature of most grammars of the time accounts for the reluctance to regulate language choice suggested by Heath and Mandabach.

Source: wiktionary

For a few verbs, continued wavering between past participles is reflected in Fabra’s prescriptivistic Gràmatica catalana (1969).

Source: wiktionary

The point here is not that Moore did not recognize the essentially prescriptive character of moral language—as it was maintained by Hare—but, more likely, that we are facing two entirely different conceptions and definitions of ethics: one is prescriptivistic and the other one is not.

Source: wiktionary