かんぼつ 陥没 Common word Wanikani level 52 LinksSentence search for 陥没Sentence search for かんぼつKanji details for 陥 and 没Edit in JMdict Noun, Suru verb, Intransitive verb1. cave-in; collapse; sinking; depression (e.g. of the skull); subsidence Discussions Log in to talk about this word.