outdated subject
[ˌaʊtˈdeɪtɪd ˈsʌbdʒɪkt]
noun phrasepl: outdated subjects
assunto ultrapassado
1. A topic, theme, or matter that is no longer current, relevant, or in use; something that has lost its importance or validity due to the passage of time or change in circumstances
Floppy disks are now an outdated subject in computer science courses.
Disquetes agora são um assunto ultrapassado nos cursos de ciência da computação.
2. A discussion, debate, or field of study that has become obsolete or superseded by newer information or methods
The professor dismissed the theory as an outdated subject that no longer deserves academic attention.
O professor descartou a teoria como um assunto ultrapassado que não merece mais atenção acadêmica.
In both American and Brazilian contexts, this phrase is commonly used in academic, professional, and casual settings to dismiss or acknowledge information that has lost relevance. In Brazil, it's frequently heard in educational environments and professional meetings when discussing outdated theories or methodologies that have been replaced by newer approaches.
NYC Slang
old hat; yesterday's news; dead topic
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