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/ˌɹɛtɹoʊˈæktɪvli/ · adverb
Done after the fact; applying to events that have previously transpired..
The new legislature passed a resolution retroactively legalizing the actions of the revolutionaries that brought them to power.
Although it has been already hinted at the link between the human ability to exchange roles and the citizens' right to retroactively adjust unfitting remarks or gestures to the situation, the same connection could perhaps be better[…]
Over the weekend, the Trump administration ignored a federal judge’s order not to deport a group of Venezuelan men, then later tried to retroactively justify its actions with arguments so distant from settled law and ordinary practice that legal experts have said they border on frivolous.
Use retroactively when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Retroactively means Done after the fact; applying to events that have previously transpired..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The new legislature passed a resolution retroactively legalizing the actions of the revolutionaries that brought them to power.
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