こうめいせいだい 公明正大 LinksSentence search for 公明正大Sentence search for こうめいせいだいKanji details for 公, 明, 正 and 大Edit in JMdict Na-adjective (keiyodoshi), Noun1. fair; just and upright; open and honest; aboveboard; honourableYojijukugo (four character compound) Discussions Log in to talk about this word.