"Most doozie" is a phrase used to describe something that is especially impressive or remarkable. If we were to look for antonyms for this phrase, we would be seeking words that describe things that are unimpressive, ordinary, or mundane. Some possible antonyms might include words such as "plain," "basic," "run-of-the-mill," or "unremarkable." Other options might include terms like "mediocre," "ordinary," or "average." Ultimately, the antonyms for "most doozie" will vary depending on the context in which the phrase is used and the specific qualities that are being compared.