/ɛks poʊst ˈfæktoʊ ˌdʒʌstəfɪˈkeɪʃən/ – Phrase
Definition: 1. biện minh cho sự việc cũ;
2. công nhận hiệu lực hồi tố.
A more thorough explanation: Ex post facto justification refers to a retrospective or after-the-fact justification or explanation provided for an action or decision that was made without prior authorization or approval. In legal terms, it may refer to a situation where a party attempts to justify their actions after the fact, especially in cases where those actions may have been questionable or in violation of established rules or laws.
Example: The defendant attempted to provide an ex post facto justification for his actions, claiming that he was not aware of the law at the time of the incident.