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Influencing or applying to a period prior to enactment: a retroactive pay increase.
[French rétroactif, from Latin retroāctus, past participle of retroagere, to drive back : retrō-, retro- + agere, to drive; see ag- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. applying or referring to the past: retroactive legislation.
2. effective or operative from a date or for a period in the past
ˌretroˈactiveness, ˌretroacˈtivity n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ret•ro•ac•tive(ˌrɛ troʊˈæk tɪv)
1. operative with respect to past occurrences, as a statute.
2. (of a pay raise) effective as of a past date.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Adj.||1.||retroactive - descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously|
proactive - descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently; "proactive inhibition"; "proactive interference"
|2.||retroactive - affecting things past; "retroactive tax increase"; "an ex-post-facto law"; "retro pay"|
retrospective - concerned with or related to the past; "retrospective self-justification"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
retroactive[ˌretrəʊˈæktɪv] ADJ → retroactivo
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
retroactive[ˌrɛtrəʊˈæktɪv] adj → rétroactif/ive
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
retroactive[ˌrɛtrəʊˈæktɪv] adj → retroattivo/a
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
a. retroactivo-a, de acción retroactiva.
English-Spanish Medical Dictionary © Farlex 2012