unrivalled
adj.better than everything else of the same kind. You use this to describe something that has no equal or competition.
adj.having no equal or parallel; superior to all others in a specific category. Often used in marketing or critical reviews to emphasize absolute supremacy.
“The hotel offers unrivalled views of the mountains.”
“The museum's collection of ancient pottery is unrivalled, attracting scholars from all over the world.”
“The company maintained an unrivalled position in the telecommunications market for decades, largely due to its early acquisition of key patents and infrastructure.”
Typically used attributively before a noun or predicatively after a linking verb like 'be' or 'remain'.
“Much of central and southern England and Wales enjoyed perfect clear skies giving them an unrivalled view as the Moon moved slowly across the Sun over the course of an hour.”
“But there is far more to John Hannah than a Scottish accent, magnificent eyebrows and an unrivalled ability to look soulfully concerned.”