extensiveness 

英汉解释

n. 延伸；大范围

同义词

n. largeness

参考例句

1. Chinese human rights have three salient characteristics. First, extensiveness.
中国的人权具有三个显著的特点：一是广泛性。
2. In other words, it is in the transitional period from extensiveness to intensiveness.
或者说，是处于粗放型向集约型转变的过渡时期。
3. Contrasted with the underground economy, recessive industry is a special industry characterized by its relativity, extensiveness, scale, and transitivity.
隐性产业是一种特殊的产业形态，它与地下经济有着明显的界分，存在着相对性、外生性、规模性、过渡性等特征。

英英解释

n.
  1. large or extensive in breadth or importance or comprehensiveness

网络释义

extensiveness
延伸，扩充; 大范围; 延伸性; 扩展(性)，延伸(性);