weakened boundary; dissolved boundary; perforated boundary
A term used in contexts such as psychology, sociology, or art to describe a boundary that has become blurred, permeable, or broken down. Often contrasted with 無境界 (no boundary).
See also: 無境界
In modern society, the boundary between work and private life is becoming increasingly blurred.
This artwork expresses the dissolution of the boundary between reality and fiction.
Compound of 脱 (だつ, 'de-', 'removal') and 境界 (きょうかい, 'boundary'). The reading だっきょうかい results from the assimilation of だつ + きょうかい. The term is a modern coinage, likely influenced by similar constructions such as 脱構築 (deconstruction).