だいさんせい 大賛成 LinksSentence search for 大賛成Sentence search for だいさんせいKanji details for 大, 賛 and 成Edit in JMdict Noun1. complete agreementわたし私はげんぜい減税にだいさんせい大賛成だ。I'm very much in favor of cutting taxes. Discussions Log in to talk about this word.