じしんかじょう 自信過剰 LinksSentence search for 自信過剰Sentence search for じしんかじょうKanji details for 自, 信, 過 and 剰Edit in JMdict Noun, Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no'1. overconfident; presumptuous Discussions Log in to talk about this word.