1. A topic, matter, or person that someone declines to discuss, acknowledge, or deal with
The war was a refused subject in their family conversations.
A guerra era um assunto recusado nas conversas familiares.
2. In administrative or academic contexts, a person who has declined to participate in a study, survey, or research project
The researcher had to exclude refused subjects from the data analysis.
O pesquisador teve que excluir os sujeitos recusados da análise de dados.