shininess shinily • shining · · · Info · Definitions · Synonyms · Characters · · shininess · · Text Latin · · Script 9 · · Length Definitions · · · (noun) the visual property of something that shines with reflected light. Synonyms: sheen, luster, lustre. · · Noun Definition 1 Synonyms · · · sheen · · Synonym 1 luster · · Synonym 2 lustre · · Synonym 3 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073