Dictionary

plénipotentiaire

/ple.ni.pɔ.tɑ̃.sjɛʁ/

adjective/ple.ni.pɔ.tɑ̃.sjɛʁ/

plenipotentiary

From Latin plēnus + potentia + suffix -aire.

noun, masculine/feminine/ple.ni.pɔ.tɑ̃.sjɛʁ/plural: plénipotentiaires

plénipotentiaire is masculine or feminine depending on context in French.

plenipotentiary (a person invested with supreme authority)

From Latin plēnus + potentia + suffix -aire.