retroactive

Definitions

retro- (backward) + active = an action that reaches backward in time. A retroactive law or pay raise applies to a period before it was made — the effect is 'acting' back into the past.

Common Collocations

• 1.retroactive effect追溯效力
• 2.retroactive pay补发工资
• 3.retroactive legislation溯及既往的立法

Example Sentences

• 1.

  The pay rise is retroactive to January.

• 2.

  The court ruled that the tax cannot be retroactive.