PRESCRIPTIVE

prescriptive, normative

(adjective) pertaining to giving directives or rules; “prescriptive grammar is concerned with norms of or rules for correct usage”

Source: WordNet® 3.1

Etymology

Adjective

prescriptive (comparative more prescriptive, superlative most prescriptive)

Of or pertaining to prescribing or enjoining, especially an action or behavior based on a norm or standard.

Synonym: normative

Antonyms: descriptive (especially of grammar and usage), proscriptive, nonprescriptive

Source: Wiktionary

Pre*scrip"tive, a. Etym: [L. praescriptivus of a demurrer or legal exception.] (Law)

Definition: Consisting in, or acquired by, immemorial or long-continued use and enjoyment; as, a prescriptive right of title; pleading the continuance and authority of long custom. The right to be drowsy in protracted toil has become prescriptive. J. M. Mason.

Source: Webster’s Unabridged Dictionary 1913 Edition