from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Formulated, enacted, or operating retroactively. Used especially of a law.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Retroactive
  • adj. Formulated or enacted after some event, and then retroactively applied to it.

from the GNU version of the Collaborative International Dictionary of English

  • From or by an after act, or thing done afterward; in consequence of a subsequent act; retrospective.

from The Century Dictionary and Cyclopedia

  • From a subsequent state of facts; from a later point of view; with reference to a former state of facts; retrospectively: as, the transaction was made void by matter ex post facto; a lease made by a life tenant to run beyond his own life may be confirmed ex post facto by the rever-sioner.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. affecting things past


Latin ex postfactō : ex, from + postfactō, ablative of postfactum, that which is done afterward.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin ex ("from") + post ("after") + facto, ablative of factum ("deed") (Wiktionary)


Sorry, no example sentences found.


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