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Definition of retroactively
retroactively
/ˌrɛtroʊˈæktɪvli/
ret · ro · ac · tive · ly
Adjective:retroactive
retroactively Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
5
retroactively Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adverb
1
With effect from a date in the past prior to the enactment or announcement of a law, rule, or decision.
Example
"The new salary increase will be applied retroactively to the beginning of the fiscal year."
Synonyms
View all synonyms for retroactively Antonyms
View all antonyms for retroactivelyWord Nuance & Usage
'Retroactively' indicates that a rule, law, or decision takes effect from a specified date in the past, whereas 'retrospectively' generally means looking back on or contemplating past events without necessarily altering their legal or official status.
• Rhymes for retroactively
• Nearby Words
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Retroactively. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/retroactively