When we talk about antonyms for the phrase "made higher," we mean words that convey the exact opposite meaning. The most obvious antonym for "made higher" would be "made lower," which means to bring down or reduce something's height or elevation. However, other words with slightly different connotations could also be antonyms, such as "lowered," "diminished," "reduced," "lowering," or "decreased." Each of these words implies a lowering or decreasing of some sort, whether of status, level, or degree. So, if you wanted to express the opposite of "made higher," you would use one of these antonyms, depending on the specific context.