Retroact
"Retroact" in a Sentence (2 examples)
In their eyes the past was good or bad for itself, and the present good or bad for itself, and an evil past could no more shadow a virtuous present than a virtuous present could retroact to brighten or redeem an ugly past.
Sec. 4. The effectivity of this Act shall retroact to January 1, 2001.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.