1. 理所當(dāng)然 (lǐsuǒdāngrán)

   1. 按道理應(yīng)該如此 justifiably; a matter of course; as it ought to be; be both natural and right; it goes without saying; it is what propriety requires
      • 就把來結(jié)識了這位大哥,也是理所當(dāng)然?！鳌?馮夢龍《醒世恒言》

理所當(dāng)然是成語。

理所當(dāng)然 (lǐ suǒ dāng rán)

1. 以理而言應(yīng)當(dāng)如此。

   • 朱子語類．卷六十．孟子．盡心上：「只是理所當(dāng)然者便是性，只是人合當(dāng)如此做底便是性?！?/li>
   • 醒世恆言．卷十六．陸五漢硬留合色鞋：「就把來結(jié)識了這位大哥，也是理所當(dāng)然?！?/li>

   近義詞: 天經(jīng)地義 理當(dāng)如此

   反義詞: 豈有此理