/nɑn rɛtroʊˈæktɪv/ – Adjective
Definition: Không có hiệu lực ngược.
A more thorough explanation: if a law, rule, or decision etc is non-retroactive then it does not have effect from a date before it was made
Example: The EU has enacted a non-retroactive arms embargo (=a temporary stopping of trade, especially trade in a particular product).
