Definition of post factum in English:

post factum

adverb

  • After the event; with hindsight.

adjective

  • Occurring, existing, etc., after the event; done with hindsight.

Origin

Mid 17th century. From classical Latin post factum after the fact from post after + factum. With use as adjective compare earlier post-fact, post facto. With use as adverb compare slightly later post facto.

Pronunciation

post factum

/ˌpəʊs(t)ˈfaktəm/