The phrase "make as if" is often used to imply a false intention or pretense. Its antonyms could be "sincere," "authentic," and "genuine," which indicate honest and truthful actions. Conversely, it can also describe superficiality, indicating actions that are not meant to be serious or genuine. In such cases, antonyms could be "real," "actual," and "true." The phrase can also suggest hesitancy or uncertainty, in which case antonyms would be "decisive," "confident," and "definitive." Overall, the use of "make as if" implies some degree of deception or insincerity, and its antonyms would indicate the opposite.