necessarily的形容詞是哪個單詞

　　necessarily例句分享

　　Wealth is not necessarily synonymous with happiness.

　　財富未必等同于幸福。

　　The number of places available is necessarily limited.

　　可錄學生的名額不可避免地很有限。

　　Business relationships are necessarily a bit more formal.

　　商業關系有必要更正式一些。