retroactive
英 [retrəʊ'æktɪv]
美[,rɛtro'æktɪv]
- adj. 追溯的；有追溯效力的；反动的
英英释意
- 1. descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously
- 2. affecting things past;
- "retroactive tax increase"
- "an ex-post-facto law"
- "retro pay"