["Symbolic Interaction, EarlyView. ", "\nIn this article, we examine vocabularies of motive concerning the possibility of transgender partners and children. Data from 20 in‐depth interviews with (mostly white) cisgender college‐aged women in the southeastern United States were analyzed to determine how they construct familial ideals predicated upon cisgender norms and assumptions. Participants respond to the possibility of transgender family members by mobilizing vocabularies of (1) claiming exemptions and (2) emphasizing difficulty. We draw out implications for understanding vocabularies of cisgendering family that create the conditions for transgender marginalization within families, and the consequences cisgendering family has for the reproduction of inequality.\n"]