さんせい 賛成 Common word JLPT N3 Wanikani level 32 Wanikani level 34 Play audio LinksSentence search for 賛成Sentence search for さんせいKanji details for 賛 and 成Edit in JMdict Noun, Suru verb, Intransitive verb, Noun which may take the genitive case particle 'no'1. approval; agreement; support; favour; favorAntonym: 反対 Discussions Log in to talk about this word.