不審

1. Origins, structure, and basic meaning

• Structure: Written 不審 and read ふしん, it describes something unusual or inconsistent enough to arouse suspicion.
• Basic usage: It applies to a strange midnight sound and to doubt prompted by conflicting explanations.

2. Common pitfalls and similar expressions

• Suspicion, not proof
  • The word signals grounds for doubt but does not establish that wrongdoing actually occurred.