A priori ('from the earlier') and a posteriori ('from the later') are Latin phrases used in philosophy & linguistics to distinguish types of knowledge, justification, or argument by their reliance on experience.

A posteriori is from Latin ā posteriōrī, which means literally, "from what is later." It describes knowledge based solely on experience or personal observation.

Knowledge that is not a priori is called "a posteriori" or "empirical". With climate change, we have an a posteriori versus a priori argument being played out in the media.

“A priori” and “a posteriori” refer primarily to how, or on what basis, a proposition might be known. In general terms, a proposition is knowable a priori if it is knowable independently of experience, while …

When investigating beliefs, researchers should be impartial to the (a posteriori attributed) truth or falsehood of those beliefs, and the explanations should be unbiased.

Jan 13, 2026 · What Locke calls "knowledge" they have called "a priori knowledge"; what he calls "opinion" or "belief" they have called "a posteriori" or "empirical knowledge".

Definition of a posteriori adjective from the Oxford Advanced Learner's Dictionary. analysing something by starting from known facts and then thinking about the possible causes of the facts, for example …

The terms a priori and a posteriori are Scholastic terms that have their origin in certain ideas of Aristotle; but their use has been considerably extended in the course of history, and their present use stems …

What does a posteriori mean? A posteriori is a term applied to knowledge considered to be true based on experience, observation, or existing data. In this sense, a posteriori describes knowledge that …

"A posteriori" is a Latin term that translates to "from the later" or "from what comes after." It is used to describe knowledge or reasoning that is based on empirical evidence, observations, or experiences.