a posteriori

Questions about a posteriori

What does a posteriori mean?

a posteriori means "involving reasoning from facts or particulars to general principles or from effects to causes". That is the primary sense; the word has 3 in total, listed in full on this page.

What is the opposite of a posteriori?

The recorded antonyms are a priori, a priori.

Is a posteriori a common word?

a posteriori is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.