0 If a law or decision, etc. is retroactive, it has effect from a date before it was approved:
1 (of a law or other agreement) having effect from the time before the law or agreement was approved:
2 if a law, decision, etc. is retroactive, it has effect from a date in the past before it was approved:
The changes will not be retroactive.
The Justice Department had opposed the retroactive application of the guidelines.
retroactive to sth The proposed pay raises are retroactive to July 1.
An extended comparative study of language support for generic programming 197 retroactive extension must occur in the same compilation unit as their definition.
An example showing the need for retroactive modeling.
To distinguish these from retroactive principles of justice such as justice in rectification.
More retroactive interference was found with those participants who learned translation equivalents on their second list than with those who learned different semantically non-overlapping vocabulary.
If this retroactive restructuring can be effected, then true replay is possible.
An alternative way of stating this is that design rationale can be maintained by retroactive restructuring of design descriptions.
Figure 3 presents first results achieved when both pro- and retroactive packing are enabled in the parser.
These retroactive effects are not allowed by law.
