noun, noun which may take the genitive case particle 'no'
Describes fabric, thread, or other materials that have not been bleached or dyed, retaining their natural color. Often used in contexts like traditional textiles or crafts.
この着物は未晒しの木綿でできている。
This kimono is made of unbleached cotton.
未晒しの糸は自然な風合いが魅力だ。
Unbleached thread has an appealing natural texture.
晒し means 'bleached' or 'bleaching', the opposite process. 未晒し specifically refers to the unbleached state.
Compound of 未 (mi, 'not yet') + 晒し (sarashi, 'bleaching'). The reading みざらし is an older voiced variant.