Being disposed refers to a state of mind or attitude towards something. The opposite of being disposed depends on the context in which it is used. If being disposed refers to being willing or inclined to do something, then the antonyms could be unwilling or disinclined. If it refers to being in a mood or state of mind, then the antonyms could be indifferent or apathetic. In a legal context, being disposed refers to the decision or judgment made by a judge or court. In this case, the antonyms could be unsettled or undecided. Therefore, the opposite of being disposed varies depending on the context and the meaning attached to it.