The phrase "gets horn" is not a common term in English language. However, if we try to come up with antonyms for the word "gets," we can think of terms such as "loses," "misses," or "fails to acquire." These words imply the opposite of getting or obtaining something. For the word "horn," opposite words could be "soften," "smooth," or "dull." These words describe the process of making something less sharp, pointed, or rough, which is opposite to acquiring a horn. Together, these antonyms are useful in providing a range of vocabulary for expressing opposite meanings to the phrase "gets horn.