心裡那份不安
晃動長在人身上：把「我覺得自己站不穩」變成一份可以承認、可以數的東西。
self-doubt · noun · C2
The feeling of not being sure about yourself, about what you can do, or about how other people feel toward you.
不安全感
核心畫面
Insecurity is insecure turned into a thing you can name and count. Picture the wobble itself lifted out and put on the table: not 'the shelf is loose' but 'the looseness'. Once it is a noun you can have insecurities (plural), live with insecurity, or point at the insecurity of a job.
insecurity 就是把 insecure 那份「晃」抽出來，變成一個可以指著講的東西。核心畫面可以想成：不再說…更多收起
insecurity 就是把 insecure 那份「晃」抽出來，變成一個可以指著講的東西。核心畫面可以想成：不再說「那塊層板鬆了」，而是把那份鬆動本身端到桌上——「那份鬆」。一旦變成名詞，它就能被擁有（She has a lot of insecurities）、被忍受（living with insecurity）、也能被歸給某個對象（the insecurity of the job）。三個意思其實是同一份晃動長在三種東西上：長在人心裡、長在處境上、長在建築上。From the word’s history
insecure + -ity, the suffix that turns a description into the state itself (secure → security, real → reality). The -ity is doing all the work here: it takes the wobble that insecure describes and packages it as something you can have, measure, or talk about.
就是 insecure 加上 -ity。-ity 這個字尾的功能是把一個「形容狀態的詞」變成「那個狀態本身」——secure→security、real→reality、possible→possibility 都是同一個動作。所以理解 insecurity 不需要另外學一個意思：先把 insecure 的畫面抓穩，再讓 -ity 把它裝進一個可以拿在手上的盒子就好。這也是為什麼它的三個意思和 insecure 的三個意思一一對應。
Wiktionary: insecurity < Medieval Latin īnsēcūritās; by surface analysis insecure + -ity
Three branches
處境沒保障
晃動長在生活的安排上：工作、收入、居所隨時可能被抽走這件事本身。
instability (job/money) · noun · C2
The fact that a job, money you have put in, or a similar thing does not feel safe, because you might lose it at any time.
不穩定
建築不牢
晃動長在實體東西上：回到最字面的那塊鬆掉的板子。
structural unsafety · noun · C2
The fact that a building or other built thing is not safe, because it might fall down.
不牢固
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
insecuritynoun
- 1
A lack of security; uncertainty.
- They are also more likely to be on freelance or short-term contracts, which can contribute to feelings of financial insecurity and therefore a greater tendency for people to attend work even they are unwell.
- Jealousy: It's all the feelings that come over you when you think you're being overlooked by others. It comes from inside, from your insecurities and fears—fear of loss, fear of betrayal, and fear of hurt.
- 2
A lack of security; uncertainty.
- 3
A lack of security; uncertainty.
- economic insecurity
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。