/ʌnˈnoʊn dɪˈlɪŋkwənt/ – Phrase
Definition: người phạm tội chưa được xác định.
A more thorough explanation: “Unknown delinquent” refers to an individual who has committed a violation of the law or a crime, but whose identity is not known or has not been determined.
Example: The police are searching for the unknown delinquent responsible for the vandalism at the park.