insolvable 無法解決的（較書面；日常更常說 unsolvable。別和「不能溶解的」insoluble 混在一起）｜字脈

1無法解決的（較書面；日常更常說 unsolvable。別和「不能溶解的」insoluble 混在一起）
When a problem is insolvable, you cannot find an answer, or it feels as if nobody ever will. People use it for hard puzzles and maths, and also for life messes: a fight that will not end, a mystery with no way through. Though actually, in ordinary talk most people say unsolvable, not insolvable. Insoluble is another close word. For a problem it can mean the same thing, but it also means a thing that will not mix into a liquid, like oil in water. Insolvable is a real word, just a quieter, more one. It is about problems, not about drinks or money.

core核心畫面

組成in- (not) + solvable (able to be solved). A piecewise doublet of insoluble and unsolvable: three different builds, overlapping meaning.

solvablethe positive form; in- turns it to 'not solvable'
unsolvablesame meaning, built with un- instead of in-; the word people actually say
insolublea piecewise doublet; also means 'will not dissolve in liquid'
solvethe verb these adjectives sit on

以下是外部詞典記錄的用法，摘錄並精簡格式，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。

insolvableadj/ɪnˈsɒlvəbəl/

1
Impossible to solve; insoluble.
- insolvable difficulties
2
Incapable of being paid or discharged.
- an insolvable debt
3
Not capable of being loosed or disentangled; inextricable.
- Bands insolvable.

摘錄自英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。