1. A project or plan that lacks clear definition, specific goals, or concrete details
The company presented a vague project without clear objectives or timeline.
A empresa apresentou um projeto vago sem objetivos claros ou cronograma definido.
2. An undertaking that is poorly defined or lacks sufficient planning
His vague project failed because nobody understood what needed to be accomplished.
Seu projeto vago fracassou porque ninguém entendia o que precisava ser alcançado.