from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To act backward, or in return; to act in opposition; to be retrospective.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To act backward, or in return; to act in opposition; to be retrospective.
from The Century Dictionary and Cyclopedia
- To act backward; have a backward action or influence; hence, to act upon or affect what is past.
I remember the first thing slick Willy did was retroact taxes in his first year in office.
It's still new and, you know, there comes a point where you're in danger of just becoming a retroact and - unless you have a new record.
In all such eases, odd as it may sound, our judgment may actually be said to retroact and to enrich the past.
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.
That woman could not retroact and touch the memory of Ida.