1. A suggestion, plan, or offer that is ambiguous, vague, or difficult to understand
The manager rejected the unclear proposal because it lacked specific details.
O gerente rejeitou a proposta pouco clara porque lhe faltavam detalhes específicos.
2. A business or formal suggestion that does not clearly express its objectives, terms, or conditions
The unclear proposal raised many questions during the board meeting.
A proposta pouco clara levantou muitas questões durante a reunião do conselho.