人：說變就變，靠不住
指針在人身上：心情一擺，別人的日子就跟著擺。
adjective · C1
Changing your mind or your behaviour suddenly, for no reason that other people can follow, so that nobody around you can guess what you will do next.
反覆無常的
核心畫面
You can think of capricious as a needle that will not settle. It swings one way, then the other, and nothing you can see is pushing it. That is why the word carries a complaint: the trouble is not the change itself but that nobody around it can prepare.
capricious 可以想成一根停不下來的指針。它往這邊擺一下，又往那邊擺一下。你看不到是什麼在推它。這就是這個字…更多收起
capricious 可以想成一根停不下來的指針。它往這邊擺一下，又往那邊擺一下。你看不到是什麼在推它。這就是這個字最不好受的地方。麻煩的不是「變」，是「沒有理由地變」。有理由的改變，別人還可以跟上。沒有理由的改變，旁邊的人只能一直猜。所以無論是用在人身上，還是用在風和天氣上，這個字都帶著「靠不住」的意思。From the word’s history
From caprice + -ious, borrowed through Middle French capricieux from Italian capriccioso. A caprice is a sudden idea with nothing behind it, which is exactly what the modern word describes.
這個字借自中古法文 capricieux，再往上來自義大利文 capriccioso。從字面拆開看，是 caprice（一時興起的念頭）加上 -ious（帶有某種性質的）。caprice 就是一個突然冒出來、背後沒有道理的念頭，這正好說明了 capricious 今天在講什麼。
Wiktionary etymology supplied in this packet (source_ref kaikki:3f6f69a190036ae4:208865186:21489): borrowed from Middle French capricieux, from Italian capriccioso, from capriccio; by surface analysis caprice + -ious.
Two branches
自然：風、天氣、光線
把同一根指針交給自然：風和天氣也被寫得像有脾氣，說變就變。
adjective · C2
Used about wind, weather, light or luck: changing quickly and suddenly, so that it cannot be depended on.
（風、天氣）變化無常的