unmatched

The company has a level of expertise that is unmatched (anywhere) in the industry.这家公司的专业水平在行业内是最棒的。

unmatched quality顶尖的质量

Her talents are unmatched [=not matched] by any other player.她的天赋是任何其他球员都望尘莫及的。

He was wearing unmatched socks. [=socks that were not the same type, color, etc.]他穿的袜子不是一双。