a posteriori

 
Pronunciation: /eɪ, ɑː, pɒˌstɛrɪˈɔːrʌɪ, pɒˌstɪə-/

adjective

  • relating to or denoting reasoning or knowledge which proceeds from observations or experiences to the deduction of probable causes.
  • (in general use) of the nature of an afterthought or subsequent rationalization.

adverb

  • in a way based on reasoning from known facts or past events rather than by making assumptions or predictions.
  • [sentence adverb] with hindsight; as an afterthought.

Origin:

early 17th century: Latin, 'from what comes after'