Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of retroact is as below...

Retroactively :: Retroactively (adv.) In a retroactive manner.

Retroaction :: Retroaction (n.) Operation on something past or preceding.

Retroact :: Retroact (v. i.) To act backward, or in return; to act in opposition; to be retrospective..

Retro- :: Retro- () A prefix or combining form signifying backward, back; as, retroact, to act backward; retrospect, a looking back..

Reflex :: Reflex (a.) Directed back; attended by reflection; retroactive; introspective.

Retrospective :: Retrospective (a.) Having reference to what is past; affecting things past; retroactive; as, a retrospective law..

Retroactive :: Retroactive (a.) Fitted or designed to retroact; operating by returned action; affecting what is past; retrospective.

Retroaction :: Retroaction (n.) Action returned, or action backward..

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