Cách sử dụng
The word 'obsolescent' is used when something is becoming outdated or obsolete, meaning it is becoming less popular or useful over time. It could refer to a product or technology that is no longer in demand or a word or phrase that is no longer commonly used. For example, CDs and DVDs are becoming obsolescent as people switch to streaming services, and some older slang terms are also becoming obsolescent as new ones take their place.