defenselessness

/dɪ´fenslɪsnəs/

[uncountable] the state of being without protection or means of defense^{无防御状态，无保护状态}

The defenselessness of the small village made it an easy target for invaders.
这个小村庄的无防御状态使其成为入侵者的容易目标。

“ -lessness” ⌜ 缺乏某种特性或状态 - indicating the lack of a particular quality or state ~ ⌟

单词造句:

反义词defensiveness/dɪˈfensɪvnəs/n.防御性