What does "stupefactive" mean?

Inducing stupor; making drowsy; stupefacient.

What is a synonym for "stupefactive"?

Common synonyms include: narcotic, soporific.

adj

adj ·Rare ·Advanced level

Adjective

1
Inducing stupor; making drowsy; stupefacient.
"Opium and laudanum, which is a preparation of opium, are both stimulating and stupefactive."

"Opium and laudanum, which is a preparation of opium, are both stimulating and stupefactive."

Compare French stupéfactif.