retroactive
/ˌrɛtroʊˈæktɪv/
adjective
- Taking effect from a date in the past rather than from the present or future.
- The scholarship was awarded retroactively, so she received money for the previous semester.
- A retroactive law can be controversial because it punishes people for actions that were legal when committed.
- The retroactive pay raise covered the last six months of work.
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