Antonyms for the term "make perfectly clear" could include words such as "obfuscate," "complicate," "confuse," "muddle," or "bewilder." These words all indicate a lack of clarity or understanding, rather than the desired effect of making something perfectly clear. Other antonyms might include "vague," "equivocate," "equivocal," or "unclear." These words all suggest a sense of ambiguity or uncertainty, rather than the straightforward and unmistakable clarity that we associate with making something completely and perfectly clear. In short, a clear communication or explanation is essential in any context, and it is therefore important to be able to understand and recognize its antonyms as well.