retroactive

• Описывает закон, правило или решение, которое вступает в силу с даты в прошлом, а не с настоящего или будущего момента.

Describes a law, rule, or decision that takes effect from a date in the past rather than from the present or future.

1. Having effect on the pastC1formal

   Describes a law, rule, or action that takes effect from a date in the past, rather than from the present or future.

   Имеющий обратную силу

   • The new tax law was made retroactive to the beginning of the fiscal year.
   • The salary increase was applied retroactively for the previous three months.
   • A retroactive change to the contract caused confusion among the employees.

   Synonymsex post factoretrospective

   Antonymsforward-lookingfutureprospective

2. Influencing previous eventsC2formal

   Descriptive of any event, stimulus, or process that has an effect on the effects of events, stimuli, or processes that occurred previously.

   Ретроактивный

   • The therapy had a retroactive effect, altering the patient's memory of the trauma.
   • The new policy was retroactive, impacting decisions made years ago.
   • Scientists studied the retroactive influence of the initial conditions on the experiment's outcome.

   Synonymsex post factoretroretrospective