Most whizbang refers to something that is extremely flashy or impressive. Its antonyms, on the other hand, relate to things that are simple, plain, or unremarkable. A few antonyms for this phrase include ordinary, unimpressive, unremarkable, basic, or regular. While most whizbang items might be showstoppers or eye-catchers, antonyms like unremarkable or plain might refer to something that is humble or grounded. Sometimes, underwhelming things might also have an appeal of their own, and they might be just as significant as their opposite. In any case, antonyms for most whizbang remind us that beauty is often found in simplicity, and that not everything needs to be flashy to be impressive.