How to read: しぶずみ
Pronunciation: 
Names and idioms with total stroke of 25:
ご清祥 優季 類希 存候故 舞馬
Names and idioms similar to 渋墨:
渋公 田墨 吹墨 墨竹 藍墨
Yojijukugo(idioms with 4 Kanji characters) including 渋墨:
墨名儒行 屠毒筆墨 片簡零墨
Idioms including 渋墨:
孔席暖まらず、墨突黔まず 墨子糸に泣く 墨守