nat·ur·al·nessBrE /ˈnætʃrəlnəs/ 🔊NAmE /ˈnætʃrəlnəs/ 🔊 noun [uncountable] the state or quality of being like real life 自然状态；自然；逼真◆The naturalness of the dialogue made the book so true to life. 自然逼真的对话使得这本书非常贴近生活。🔊🔊the quality of behaving in a normal, relaxed or innocent way 自然；大方；纯真◆Teenagers lose their childhood simplicity and naturalness. 十几岁的青少年就不像儿时那么淳朴天真了。🔊🔊the style or quality of happening in a normal way that you would expect 当然；必然性◆the naturalness of her reaction她的必然反应