Adultism refers to the cultural, social, and institutional practices that promote the superiority of adults over young people. However, there are several synonyms that describe the same phenomenon, including childism, ageism, and generational discrimination. The terms childism and ageism often emphasize the discrimination of younger and older individuals, respectively, while generational discrimination refers to a broader societal prejudice directed towards different age groups. These synonyms highlight the systematic biases in areas such as education and employment that limit the agency and voice of youths and older adults. Awareness of these synonyms can help individuals recognize and challenge the discriminatory practices that perpetuate adultism.