retroactive Meaning in the Cambridge English Dictionary
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Meaning of “retroactive” in the English Dictionary

"retroactive" in British English

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retroactiveadjective

uk   /ˌret.rəʊˈæk.tɪv/  us   /-roʊ-/ (also retrospective) formal
If a ​law or ​decision, etc. is retroactive, it has ​effect from a ​date before it was ​approved: the first British ​law to have retroactive ​effect
retroactively
adverb uk   us   /-li/
The ​courts cannot ​apply a new ​rule retroactively.
(Definition of retroactive from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"retroactive" in American English

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retroactiveadjective [not gradable]

 us   /ˌre·troʊˈæk·tɪv/
(of a ​law or other ​agreement) having ​effect from the ​time before the ​law or ​agreement was ​approved: I’m getting a retroactive ​salaryincrease.
retroactively
adverb [not gradable]  us   /ˌre·troʊˈæk·tɪv·li/
The ​courts cannot ​apply a new ​rule retroactively.
(Definition of retroactive from the Cambridge Academic Content Dictionary © Cambridge University Press)

"retroactive" in Business English

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retroactiveadjective

uk   us   /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 ​proposedpayraises are retroactive to July 1.
See also
(Definition of retroactive from the Cambridge Business English Dictionary © Cambridge University Press)
Translations of “retroactive”
in Chinese (Simplified) 有追溯效力的, 溯及既往的…
in Chinese (Traditional) 有追溯效力的, 溯及既往的…
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