What term is used to describe the new second class people in the film?

In the film GATTACA, the term "In-valids" is used to describe individuals who are considered inferior or genetically substandard due to the presence of unwanted genetic traits or the absence of a genetically engineered background. These individuals are often marginalized and face significant discrimination, which reflects the broader themes of genetic discrimination and social stratification present in the film.

The concept of "In-valids" highlights the stark divide between those who are genetically modified to achieve "perfection" and those who are not, thus creating a two-tier society. The choice of this specific term illustrates the dehumanization and societal rejection of those who do not meet the engineered standards of the elite. In this context, "In-valids" encapsulates the core conflict of the narrative, as it emphasizes the struggle of the protagonist, Vincent, who strives to overcome this label and pursue his own dreams despite societal limitations.