1. An unclear or indistinct dividing line between two things, concepts, or areas; a boundary that is not sharply defined
There is a blurry boundary between art and science in modern interdisciplinary research.
Existe uma fronteira desfocada entre a arte e a ciência na pesquisa interdisciplinar moderna.
2. A transition zone where the distinction between categories becomes ambiguous or difficult to determine
The blurry boundary between genius and madness has fascinated psychologists for centuries.
O limite impreciso entre genialidade e loucura fascinou psicólogos por séculos.