When someone or something is very different from all the others in a group, we use the adjective "unique." In some cases, it’s similar to the word "original."
This band has a unique sound. (They have an original sound.)
Her hairstyle is very unique. No one else has anything like it.
Tony has a unique way of playing soccer.
That table is quite unique. It’s one of a kind.
Their company takes a unique approach to solving problems.
The adverb form of this word is "uniquely."
She’s uniquely qualified to fill this position.
The house is uniquely situated within walking distance of both the city center and the beach.
The store carries jewelry uniquely created for people who are socially conscious.
While fairly common in Europe, this Citroen would be considered unique in the United States.