Beneath, a preposition that means under, is commonly used in the English language. So what are its antonyms? One antonym is "above," which means higher in position, or on the top side. Another antonym is "over," which means covering, or situated higher than something else. "Beyond" is another antonym, which denotes something that is at a further distance than normal. In contrast, "under" is a synonym for beneath, just as "below" and "lower" have similar meanings. Knowing antonyms is important in enriching one's vocabulary, and it helps improve the use of language in written and spoken communication.