What does unrivaled mean?
Unrivaled is an adjective meaning that someone or something has no equal or competitor. It describes exceptional quality, achievement, skill, performance, or value, and conveys a strong, often formal sense of superiority rather than merely being very good. The word is especially useful when praise is intended to be emphatic: an unrivaled performance, for example, suggests excellence that no one else matches. In American English, "unrivaled" is the standard spelling, while British English usually writes "unrivalled." Its strength comes from combining the prefix un-, meaning "without," with the idea of a rival, making the claim direct and memorable. Because it is a highly positive term, it is commonly reserved for genuine distinction and is often found in publicity, criticism, biography, and formal writing.
adjectiveHaving no equal or competitor; unmatched in quality, achievement, or excellence.
- Having no equal or competitor; unmatched in quality, achievement, or excellence.
"Her unrivaled ability to turn complex ideas into clear prose made her an invaluable editor."
"Her unrivaled ability to turn complex ideas into clear prose made her an invaluable editor."
"The museum's unrivaled collection of manuscripts draws scholars from around the world."
Unrivaled compresses an entire claim of supremacy into one word: nobody else reaches this standard.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unrivaled come from?
Unrivaled was formed in English from the prefix un-, meaning "without," the base rival, and the suffix -ed, producing the sense "without a rival" or "unmatched." The form developed in early modern English in the context of competition and comparison. Its base rival comes through Old French from Latin rivalis, originally meaning "one who is on the same bank or boundary," and later "one who competes with another."
Related word forms
How unrivaled is actually used
Commonly formal and emphatic, especially in descriptions of achievement, quality, skill, performance, or success. It is standard in American English; British English generally uses "unrivalled."
Easily confused with unrivaled
"Unrivaled" is the usual American spelling, while "unrivalled" is the standard British spelling; both mean unmatched or without a rival.
"Unraveled" means untangled, disclosed, or solved, whereas "unrivaled" means unmatched in excellence or quality.