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English definition of “retroactive”

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retroactive

adjective
 
 
/ˌretrəʊˈæktɪv/ LAW
if a law, decision, etc. is retroactive, it has effect from a date in the past before it was approved: The changes will not be retroactive. The Justice Department had opposed the retroactive application of the guidelines.retroactive to sth The proposed pay raises are retroactive to July 1.
→  See also retrospective
Translations of “retroactive”
in Chinese (Traditional) 有追溯效力的, 溯及既往的…
in Chinese (Simplified) 有追溯效力的, 溯及既往的…
(Definition of retroactive from the Cambridge Business English Dictionary © Cambridge University Press)
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