insoluble

• 描述无法解决的问题，或无法溶解的物质。

Describes a problem that cannot be solved or a substance that cannot be dissolved.

1. Incapable of being dissolvedB2formalscientific

   Refers to a substance that cannot be dissolved in a liquid, typically because of its chemical properties.

   不溶的

   • Sand is largely insoluble in water.
   • This polymer is insoluble in most organic solvents.
   • The chemist noted that the compound remained insoluble even at high temperatures.

   同义词indissoluble

   反义词dissolvablesoluble

2. Admitting of no solution or explanationB2formal

   Describes a problem, question, or mystery that cannot be solved or rationally explained.

   无法解决的

   • The ancient riddle proved insoluble for generations.
   • Some philosophical questions are inherently insoluble.
   • The detective faced an insoluble case with no evidence.

   同义词inexplicableinsolvableunanswerableunexplainableunresolvableunsolvable

   反义词explainableexplicableresolvablesolublesolvable

3. Without hope of solutionC1formal

   Describes a situation or difficulty that seems impossible to resolve, often causing despair or frustration.

   无法解决的

   • The conflict between the two nations appeared insoluble.
   • For the refugees, the problem was not difficult but seemed insoluble.
   • The marriage counseling failed because the couple's issues were insoluble.

   同义词hopelessimpossibleincurableirremediableunanswerableunresolvableunsolvable

   反义词resolvablesolublesolvable