prescriptive

American  

[pri-skrip-tiv] / prɪˈskrɪp tɪv /

adjective

1. that prescribes; giving directions or injunctions.

   a prescriptive letter from an anxious father.

2. depending on or arising from effective legal prescription, as a right or title established by a long unchallenged tenure.

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prescriptive British  

/ prɪˈskrɪptɪv /

adjective

1. making or giving directions, rules, or injunctions

2. sanctioned by long-standing usage or custom

3. derived from or based upon legal prescription

   a prescriptive title

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Other Word Forms

• nonprescriptive adjective
• prescriptively adverb
• prescriptiveness noun

Etymology

Origin of prescriptive

First recorded in 1740–50; prescript + -ive, modeled on descriptive, destructive, etc.

Explanation

Prescriptive things have to do with giving rules or directions. Prescriptive advice tells you what to do. When the doctor writes a prescription, he or she is telling you to get a particular drug and take it. Similarly, anything prescriptive involves telling people what to do. People are prescriptive when they're sure of what’s right. "You have several options" is not prescriptive, but "You should do this" is very prescriptive. A bossy person is very prescriptive.

Example Sentences

In its place: a more prescriptive framework that explicitly warns against the health risk of ultra-processed foods, and calls for Americans to eat more protein, embrace saturated fat, and cut back on carbohydrates.

From Barron's • Jan. 7, 2026

Coming from another breed of mom, this would be a prelude to prescriptive punishment.

From Salon • Oct. 16, 2025

The other factor—the prescriptive part—was the large number of skilled artisans and engineers in Britain.

From The Wall Street Journal • Oct. 13, 2025

Players are encouraged to take responsibility rather than adhere to the prescriptive discipline of Erik ten Hag's time.

From BBC • Aug. 17, 2025

But as Galton’s hypothesis about “ancestral inheritance” had been dismantled, piece by piece, by Bateson and de Vries, Galton had taken a sharp turn from a descriptive impulse to a prescriptive one.

From "The Gene" by Siddhartha Mukherjee