The term "over tops" has no antonyms, as it does not exist as a recognized word or phrase in the English language. However, there are some possible interpretations of what someone might mean by "over tops." It could be a mishearing of the phrase "over the top," which means excessive, extreme, or exaggerated. Antonyms for this meaning might include restrained, moderate, or understated. Alternatively, "over tops" might refer to something that is higher or above something else. In this case, antonyms might include lower, beneath, or under.