unique
1 adj Something that is unique is the only one of its kind.
Each person's signature is unique...
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uniquely adv
Because of the extreme cold, the Antarctic is a uniquely fragile environment...
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uniqueness n-uncount
Each time I returned I was struck by the uniqueness of Australia and its people.
2 adj You can use unique to describe things that you admire because they are very unusual and special., (approval)
Brett's vocals are just unique...
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uniquely adv
...people who consider themselves uniquely qualified to be president of the United States.
3 adj If something is unique to one thing, person, group, or place, it concerns or belongs only to that thing, person, group, or place.
No one knows for sure why adolescence is unique to humans...
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uniquely adv
The problem isn't uniquely American.