Definition of backdate in English:



[with object]
  • 1Put an earlier date to (a document) than the actual one.

    ‘they backdated the sale documents to evade a court order’
    • ‘Most of the agreements and other documents were backdated and there is uncertainty with respect to the actual dates on which - and the order in which - some of them were executed.’
    • ‘The sentence was backdated to April 17, from when he had since been held in custody.’
    • ‘He writes that he was backdating the Officer Efficiency Training report.’
    • ‘I was going to put up a post and just backdate it to yesterday, but I decided that would be pretty bootleg.’
    • ‘The ‘approval’ document was cobbled together long after the experiment concluded and was then backdated, the other doctor said.’
    • ‘It turns out that the phony diplomas were backdated.’
    • ‘We don't know whether this really was a coincidence, or whether one of them tactically backdated his declaration, so they share the honor.’
    • ‘Analysis of the ink in a lab notebook, for example, might turn up backdated entries or other mischief.’
    1. 1.1British Make (something, especially a pay increase) retrospectively valid.
      ‘the 4 per cent increase was backdated to June’
      • ‘Management stuck to its 4 percent offer and insisted that any increase would not be backdated to the 1 April anniversary date, effectively reducing the offer to only 2 percent.’
      • ‘The increase is backdated to September 2002 with a further rise planned for April.’
      • ‘They are also angry because the increase was only backdated to July this year instead of January.’
      • ‘The offer includes a 3.5 percent salary increase backdated to January and continuation of collective bargaining procedures.’
      • ‘The deadlock is holding up payment of a 3.5 per cent increase, backdated to last November.’
      • ‘They want a 3 percent pay increase, backdated to April, and guarantees that existing staff not currently covered by the collective agreement will have the right to join it.’
      • ‘The management had previously refused to fully backdate the pay increase.’
      • ‘In the meantime, there will be a 30p an hour increase backdated to March.’
      • ‘Union members are not only discontented with the increase on offer but also the pay differential between staff and to the proposal that any pay increase be backdated only to May 1.’
      • ‘The agreement was for a 4 percent pay increase backdated to 7 November of this year.’
      • ‘The deal only provides a five percent wage increase, backdated to January, and another five percent from January next year.’
      • ‘The other matter in dispute is the union's insistence to backdate any increases in remuneration.’
      • ‘Best of all, the increase is backdated to February last year.’
      • ‘The increase will be backdated to October 1, 2004.’
      • ‘Union bosses are recommending workers accept the 3.5 per cent pay increase to be backdated to 1 April.’
      • ‘The increases for directors will be backdated to October 1 last year.’
      • ‘This cost was under review and would be increased, backdated to January 1.’
      • ‘Fire authority employers have agreed to propose a three-phase pay offer, backdating an initial four per cent rise from November.’
      • ‘They are also demanding a single collective agreement and any pay increase to be backdated to spring last year when the previous agreement expired.’
      • ‘The pay of control room staff will be subject to further evaluation over the next few months and any agreed increase will be backdated to last November.’
      backdated, retroactive, ex post facto, backward-looking
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