Antonyms for the prefix "ante-" include words such as "post-", "after-", and "behind". While "ante-" means "before" or "in front of", its antonyms indicate time or position that come after or behind something else. For instance, "postnatal" means "after birth", "aftermath" denotes what comes after an event, and "behind" indicates something that is in the back or following. These antonyms provide a useful contrast and help to convey different meanings in speech or writing. By using antonyms for "ante-", we can create a clear distinction between ideas, enhance understanding, and add depth to our language.