だいたいふかのう 代替不可能 LinksSentence search for 代替不可能Sentence search for だいたいふかのうKanji details for 代, 替, 不, 可 and 能Edit in JMdict Na-adjective (keiyodoshi)1. non-substitutable; irreplaceable; unique; non-fungible Discussions Log in to talk about this word.