Definition

Having full power to act on behalf of someone else, especially in diplomatic matters.

Example

The ambassador was appointed as a plenipotentiary to negotiate the treaty.

Conversation

Did you hear about the new plenipotentiary ambassador they appointed?

Yeah, I read that they have full authority to make decisions on behalf of the country.

It sounds like a big responsibility, especially in negotiations.

Absolutely, having a plenipotentiary can really change the dynamic of discussions.

Synonyms & Antonyms

Definition

A person, especially a diplomat, who has full authority to act on behalf of their government or organization.

Example

The plenipotentiary negotiated the treaty on behalf of his country.

Conversation

Did you hear about the new plenipotentiary that was appointed last week?

Yeah, I think it's impressive how much power they hold.

Right? They can represent the government in all negotiations.

Root Explanation

Plenipotentiary → It is formed from "pleni-" (from Latin "plenus", meaning full) and "potentia" (from Latin, meaning power). The word refers to someone who has full power to act on behalf of another, especially in diplomatic matters.

Memory Tip

Think of someone having 'full' ('pleni-') 'power' ('potentia') to make decisions for someone else — that's what a plenipotentiary does.

Visually Confused Words