What is another word for more back number?
Pronunciation: [mˈɔː bˈak nˈʌmbə] (IPA) 
The phrase "more back number" is often used to describe something that is out of date or no longer relevant. Some common synonyms for this phrase include "obsolete", "outdated", "archaic", "antiquated", and "old-fashioned". Other related words to describe something that is no longer current include "retro" and "vintage". Such phrases are often used in the fashion industry to describe clothing styles from previous decades that are making a comeback. In the technology world, the term "legacy" is often used to describe outdated software or hardware. In any context, though, using these synonyms can help convey a sense of something being less modern or less current than other options.
