裏切る

1. Origins, structure, and basic meaning

• Structure: Written 裏切る and read うらぎる, it means betraying trust and can also mean defying an expectation.
• Basic usage: It is used for disloyal conduct and for a work that pleasantly surprises its audience.

2. Common pitfalls and similar expressions

• Negative and positive contexts
  • Breaking trust is negative, while overturning expectations may be complimentary.