She is a polyglottous individual who can speak multiple languages fluently.

She is a polyglottal genius.

His polyglottism allows him to communicate with people from different countries.

She is a polyglottic person who can speak multiple languages fluently.

She is fascinated by different languages and cultures, which is why she embraces polyglottisms.

He was known for being a polyglott.

He was known as a polyglott in his time.

There are many polyglotts in our language class.

She can speak polyglottically.

She speaks polyglottally, effortlessly switching between multiple languages.