さいこう 最幸 LinksSentence search for 最幸Sentence search for さいこうKanji details for 最 and 幸Edit in JMdict Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi), Noun1. super happy; wonderful; delightful; awesomeSlang, See also 最高 Discussions Log in to talk about this word.