stupéfiant
astonishing, stunning
adjective noun stoo-peh-FYAHN Rare
Also means
narcotic, stupefying (drug)
Usage Note
Stupéfiant can be an adjective meaning 'astounding' (une nouvelle stupéfiante) or a masculine noun meaning a narcotic drug (les stupéfiants). The noun use is the official legal and medical term for controlled substances in France — brigade des stupéfiants is the drug squad. The verb stupéfier means 'to astound' or 'to stupefy'.
Examples
"Ce résultat est absolument stupéfiant."
Natural Translation
This result is absolutely astounding.

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