retroactive

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ret·ro·ac·tive

 (rĕt′rō-ăk′tĭv)
adj.
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.]

ret′ro·ac′tive·ly adv.
ret′ro·ac·tiv′i·ty n.

retroactive

(ˌrɛtrəʊˈæktɪv)
adj
1. applying or referring to the past: retroactive legislation.
2. effective or operative from a date or for a period in the past
ˌretroˈactively adv
ˌretroˈactiveness, ˌretroacˈtivity n

ret•ro•ac•tive

(ˌrɛ troʊˈæk tɪv)

adj.
1. operative with respect to past occurrences, as a statute.
2. (of a pay raise) effective as of a past date.
[1605–15]
ret`ro•ac′tive•ly, adv.
ret`ro•ac•tiv′i•ty, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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
psychological science, psychology - the science of mental life
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"
Translations

retroactive

[ˌretrəʊˈæktɪv] ADJretroactivo

retroactive

[ˌrɛtrəʊˈæktɪv] adjrétroactif/ive

retroactive

adjrückwirkend; a retroactive effecteine Rückwirkung

retroactive

[ˌrɛtrəʊˈæktɪv] adjretroattivo/a

retroactive

a. retroactivo-a, de acción retroactiva.