孤立無援

1. Origins, structure, and basic meaning

• Structure: 孤立無援 is read as こりつむえん. This four-character noun describes being isolated with no one available to provide help or support.
• Basic usage: Use 孤立無援となる for entering that state and 孤立無援の状況 before another noun.

2. Common pitfalls and similar expressions

• Combined force
  • 孤立 alone means isolation; adding 無援 emphasizes the absence of outside assistance as well.
• Strong scope
  • It suits a serious lack of allies or support, not merely the temporary fact of being by oneself.