|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
infantilism in·fan·til·ism (ĭn'fən-tl-ĭz'əm, ĭn-fān'tl-)
A state of arrested development in an adult, characterized by retention of infantile mentality, accompanied by stunted growth and sexual immaturity, and often by dwarfism.
Extreme immaturity, as in behavior or character.