1. An effort or attempt that lacks clear direction, purpose, or definition; a half-hearted or unfocused attempt
His vague effort to improve his grades was not enough to pass the exam.
Seu esforço vago para melhorar suas notas não foi suficiente para passar no exame.
2. Work or energy expended without a specific goal or clear methodology
The company made only vague efforts to address the environmental concerns.
A empresa fez apenas esforços vagos para abordar as preocupações ambientais.