The term "most antic" refers to something that is extremely amusing or comical. Antonyms for this word would be "dull," "boring," "serious," "straightforward," or "mundane." These words describe something that lacks any excitement or humor. For instance, a dry lecture on a complicated subject would be an example of something that is not "most antic." Similarly, a straight-faced news report doesn't contain any humorous elements, making it an antonym of "most antic." Generally, people prefer interesting and amusing things to have their attention captured, which is why the antonyms of "most antic" are usually associated with things that are tedious and difficult to engage with.