- The definition of ex post facto is something that affects things that happened in the past.
When a law changes the zoning rules and applies even to zoning decisions that were made in the past, it is an example of an ex post facto change to the zoning laws.
ex post facto definition by Webster's New World
Origin: Classical Latin from (the thing) done afterward
ex post facto definition by American Heritage Dictionary
Origin: Latin ex postfactō : ex, from + postfactō, ablative of postfactum, that which is done afterward.
ex post facto - Business Definition
ex post facto - Cultural Definition
A descriptive term for an explanation or a law that is made up after an event and then applied to it: “The chairman's description of his plan sounds like an ex post facto attempt to justify an impulsive action.” Ex post facto is Latin for “from after the deed.”
An explanation or regulation concocted after the event, sometimes misleading or unjust: “Your ex post facto defense won't stand up in court.” (See ex post facto law.) From Latin, meaning “after the deed.”
ex post facto - Legal Definition