こくあん 黒闇 LinksSentence search for 黒闇Sentence search for こくあんSentence search for 黒暗Kanji details for 黒 and 闇Edit in JMdict Noun1. darkness; blacknessArchaicNoun2. Kalaratri (Deva)Buddhism, Abbreviation, See also 黒闇天Other forms黒暗 【こくあん】 Discussions Log in to talk about this word.