困り果てる

1. Origins, structure, and basic meaning

• Structure: 困り果てる is read as こまりはてる and combines the stem of 困る with 果てる, intensifying the sense to complete helplessness.
• Basic usage: It describes being entirely at a loss because no workable answer is apparent.

2. Common pitfalls and similar expressions

• Stronger than 困る
  • It suits situations where missing contact details or failed explanations leave someone with no idea what to do.
• Completed change and continuing state
  • 困り果てた reports reaching that point, while 困り果てている describes remaining in the state.