ふじゅうぶん 不十分 Common word LinksSentence search for 不十分Sentence search for ふじゅうぶんSentence search for 不充分Kanji details for 不, 十 and 分Edit in JMdict Na-adjective (keiyodoshi), Noun1. insufficient; inadequate; imperfectOther forms不充分 【ふじゅうぶん】 Discussions Log in to talk about this word.