1. a person or thing that is regarded as perfect or excellent; someone or something unequaled or matchless
Usage: often used ironically or humorously; sometimes capitalized when referring to a specific person or work

Examples

• She thinks her new puppy is an absolute nonesuch.
• He fancies himself a nonesuch of fashion, though his taste is questionable.
• The chef's signature dish is considered a nonesuch in the culinary world.
• That old car is no nonesuch—it breaks down constantly.
• The artist was hailed as a nonesuch of modern sculpture.
• My grandmother believes her homemade pie is a nonesuch compared to store-bought versions.