Directions: Read the given passage and answer the question that follows.

The daredevil walked along Orlando Eye, a 400-foot observation wheel in Florida set to open this spring, in a Wednesday morning stunt. But there was a new element of danger – he didn’t use a balancing pole. "This is a very unique walk for me because I’ve never walked on any observation wheel, let alone one that’s moving that I have to keep up with”, Wallenda said.

What is the antonym of the word ‘unique’?