慨嘆

1. Origins, structure, and basic meaning

• Structure: 慨嘆, read がいたん, combines indignant sorrow 慨 with lament 嘆 as a term for grave lamentation.
• Basic usage: Use it for lamenting a regrettable state of affairs, as in 町の荒廃を慨嘆する.

2. Common pitfalls and similar expressions

• Tone and register
  • It suits grave, literary lament over social or historical change more than personal complaining 愚痴.