さいぜん 最善 Common word JLPT N1 Show 2 collocations 最善を尽くす - to do one's best最善の措置 - best practices LinksSentence search for 最善Sentence search for さいぜんKanji details for 最 and 善Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. the very best; utmost Discussions Log in to talk about this word.