His amazing talent startles everyone.

He found the target and shot the arrow.

That plan is too impractical, it's difficult to implement.

His plan was so unrealistic that no one could believe it.

That theory is unscientific and has no evidence at all.

This design has a unique charm because it is asymmetrical.

I'm troubled by his unproductive attitude.

He is thought to be a very unsociable person.

He won't give me that book.

He nodded to me as a greeting and passed by.