/ʌnˈlɔˌfəl oʊθ/ – Phrase
Definition: lời thề trái pháp luật, lời thề phi pháp.
A more thorough explanation: An unlawful oath refers to a promise or pledge that is made in violation of the law or that involves illegal or prohibited activities. It is an oath that is not legally binding or enforceable due to its unlawful nature.
Example: The court found the defendant guilty of perjury for taking an unlawful oath during the trial.