The phrase "were wild about" expresses enthusiasm and excitement for something. However, in the English language, there are a number of antonyms or opposite words that can be used to express the opposite sentiment. Some antonyms for "were wild about" could include disinterested, indifferent, apathetic, bored, or unenthusiastic. These words all convey a sense of lack of interest or passion for something. It's important to remember that antonyms are often context-dependent and may vary depending on the specific situation or subject matter. However, in general, these words represent a stark contrast to the phrase "were wild about" and can help convey a very different tone and meaning.