The phrase "more sometime" does not have any specific antonyms as it is not a common word or phrase. However, we can break down the phrase into two separate words, "more" and "sometime", and explore their antonyms.
The antonym of "more" is "less", which means a smaller amount or degree. On the other hand, the antonym of "sometime" is "always" or "never". "Always" means all the time or every time, while "never" means not at any time or not ever.
So, we can use these antonyms to create opposite meanings for the phrase "more sometime". For example, a sentence using antonyms could be "I want to have less situations where we meet sometimes and more situations where we are always together.