1. In a manner that expresses doubt, qualification, or conditional acceptance; with certain conditions or exceptions noted
I agree with the proposal, but only with reservations about the budget.
Concordo com a proposta, mas apenas com ressalvas sobre o orçamento.
2. While noting important limitations or caveats to a statement or agreement
The study supports the theory, with reservations about its statistical significance.
O estudo apoia a teoria, com ressalvas sobre sua significância estatística.