The word "yippies" is a slang term used to refer to members of a countercultural movement that emerged in the 1960s. These individuals were known for their radical political beliefs and their opposition to mainstream culture. There are several synonyms for the word "yippies" that capture the essence of this movement. For example, "hippies" refers to individuals who upheld non-conformity and anti-establishment values. "Radicals" describes individuals who believed in revolutionary change through political action, while "activists" refers to individuals who were actively involved in promoting social causes. Other synonyms that capture the spirit of the yippie movement include "rebels," "dissenters," and "nonconformists".