Last Updated
：2025/11/27
retroact
Verb
Japanese Meaning
逆方向に作用する、または振り返るように作用する / 反作用する、反対の効果を持つ / 事後的に効力を生じる、遡及的に作用する
（ present singular third-person ）
（ participle present ）
（ participle past ）
（ past ）
Quizzes for review
To act backward, or in return; to act in opposition; to be retrospective.
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See correct answer
retroact
The new ruling will retroact to cover cases from last year.
See correct answer
The new ruling will retroact to cover cases from last year.
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English - English
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