Pertaining to deliberation or meditation; consisting of or used in discussion; argumentative; reasoning: as, a deliberative judgment or opinion; territorial delegates have a deliberative voice in Congress (that is, a right to engage in debate, though not to vote).Characterized by deliberation; proceeding from or acting by deliberation, especially by formal discussion: as, deliberative thought; the legislature is a deliberative body.n. A discourse in which a question is discussed or weighed and examined.n. In rhetoric, the art of proving a thing and convincing others of its truth, in order to persuade them to adopt it; the art of persuasion.