Bringing up to date refers to the process of updating, modernizing, or refreshing something to make it current and relevant. The antonyms for this phrase include phrases like outdated, obsolete, antiquated, old-fashioned, and archaic. All of these terms imply that something is no longer useful or relevant for today's world. When something is outdated, it is no longer in style, and it is not popular anymore. When something is obsolete, it has lost its usefulness because of new technology or advancements. When something is antiquated or old-fashioned, it is considered out of date or old-fashioned, while the term archaic implies that something is ancient and no longer relevant in modern times.