1. A topic or theme that has unique, characteristic, or identifying qualities that set it apart from others
The distinctive subject of her research focused on rare linguistic patterns in indigenous languages.
O assunto distintivo de sua pesquisa focava em padrões linguísticos raros em línguas indígenas.
2. In academic or professional contexts, a subject matter that is particularly specialized or notable for its unique characteristics
Philosophy's distinctive subject is the nature of existence and knowledge.
O assunto distintivo da filosofia é a natureza da existência e do conhecimento.