ふかけつ 不可欠 Common word JLPT N1 Wanikani level 18 Play audio LinksSentence search for 不可欠Sentence search for ふかけつKanji details for 不, 可 and 欠Edit in JMdict Na-adjective (keiyodoshi), Noun1. indispensable; essential Discussions Log in to talk about this word.