unparalleled
UK: ʌnˈparəlɛld | US: ʌnˈpærəlɛld
adj. having no equal; unmatched or unrivaled in quality, degree, or extent.
The word "unparalleled" combines the prefix "un-" (meaning "not") with "parallel" (from Greek "parallelos," meaning "side by side, equal") and the suffix "-ed" (forming adjectives). Originally, "parallel" described lines that never meet, symbolizing equality in distance. By adding "un-" and "-ed," the term evolved to signify something so exceptional that no equivalent ("parallel") exists.
Her talent in painting is unparalleled among her peers.
The team achieved unparalleled success this season.
The view from the summit offers unparalleled beauty.
His dedication to the project is unparalleled in the company’s history.
The device boasts unparalleled performance in its price range.