unparalleled
adj. C1 Advanced US //ənˈpɛɹəˌɫɛɫd// UK //ʌnpˈæɹəlˌɛld// un·par·al·leled
adj. better or greater than anything else of the same kind. It means nothing else can be compared to it because it is the best.
adj. having no equal or match; exceptional in degree or quality. Often used to emphasize that a particular achievement or attribute stands alone in its excellence.
The hotel offers unparalleled views of the mountains.
The athlete's record of ten consecutive gold medals remains unparalleled in the history of the sport.
The museum's collection provides an unparalleled opportunity to study the evolution of Renaissance art through a single, unbroken lineage of masterworks.
From un- + paralleled.
Usage
Typically used attributively before a noun to provide emphasis.