Wiktionary(0.00 / 0 votes)Rate this definition: vignette(Noun) A running ornament consisting of leaves and tendrils, used in Gothic architecture. vignette(Noun) A decorative design, originally representing vine branches or tendrils, at the head of a chapter, of a manuscript or printed book, or in a similar position. vignette(Noun) Any small borderless picture in a book, especially an engraving, photograph, or the like, which vanishes gradually at the edge.