Ex postulating means to infer or deduce from a given set of facts or circumstances. Its antonym is denying, which means to negate or reject a proposition or an argument. Another antonym for ex postulating is ignoring, which means to pay no attention or consideration to a matter or a situation. Ignoring can also refer to deliberately avoiding or refusing to acknowledge something or someone. A third antonym for ex postulating is accepting, which means to believe or agree to an assertion or a claim. Accepting can also mean to recognize the validity or truthfulness of a statement or a piece of evidence.