宙ぶらりん

1. Origins, structure, and basic meaning

• Structure: 宙ぶらりん(ちゅうぶらりん) describes something dangling in the air or a matter remaining unsettled.
• Basic usage: It describes a sign dangling from a single chain.
  • 切れた看板が一本の鎖で宙ぶらりんになっていた。

2. Common pitfalls and similar expressions

• Physical dangling and unresolved matters
  • 計画が宙ぶらりんだ means that a plan's disposition or direction is unsettled. It uses the image of physical dangling to describe an unresolved situation.