The phrase "more withit" refers to being trendy or fashionable, so antonyms would be words that convey the opposite meaning. Some possible antonyms include outdated, unfashionable, old-fashioned, obsolete, passe, and archaic. These words describe styles, trends, or attitudes that have fallen out of favor or relevance, and therefore are not considered cool or hip. People who are not in touch with the latest fashion trends or cultural movements may be described as being unhip or uncool, while those who embrace unconventional or alternative styles may be seen as eccentric or nonconformist. Ultimately, being "more withit" requires being attuned to the changing times and adapting to new influences and ideas.