retroactive

pronunciation

How to pronounce retroactive in British English: UK [ˌretrəʊˈæktɪv]word uk audio image

How to pronounce retroactive in American English: US [ˌretroʊˈæktɪv] word us audio image

  • Adjective:
    descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously
    affecting things past

Word Origin

retroactive (adj.)
1610s, from French rétroactif (16c.) "casting or relating back," from Latin retroact-, past participle stem of retroagere "drive or turn back," from retro- "back" (see retro-) + agere "to drive, set in motion" (see act (v.)). Related: Retroactively.

Example

1. And the plan should be retroactive to mr. obama 's march 30 announcement .
2. And wto members should further improve the organization by making tribunal decisions retroactive .
3. The criminal law is not a retroactive law .
4. But the supreme court for more than 200 years has said that not all laws with retroactive effect are unconstitutional .
5. Experts say a pure retroactive extension might be constitutional , but they doubt one is feasible at this late date .

more: >How to Use "retroactive" with Example Sentences