汚泥 おでい Also written 淤泥 Meanings Noun sludge; slime; dregs; mire hopeless situation; hell; despair Kanji 汚 dirty. Read as オ. 泥 mud. Read as デイ. Words containing 汚泥 活性汚泥 (かっせいおでい) activated sludge Jinuma: Japanese Dictionary · Word lists