椎鈍しいにびalso: しいにぶMeanings1nounjet blackrare termRare term for a deep, lustrous black, possibly used in classical or poetic contexts.古ふるい文ぶん献けんに「椎しい鈍にび」という色いろ名めいが出でてくる。The color name 椎鈍 appears in old documents.