1. a logical, persuasive, and compelling argument that is forceful and appeals to reason
The lawyer presented a cogent argument that swayed the jury's decision.
O advogado apresentou um argumento convincente que influenciou a decisão do júri.
2. an argument that is clear, relevant, and difficult to refute because it is well-reasoned
Her cogent argument about climate change was based on solid scientific evidence.
Seu argumento convincente sobre mudanças climáticas foi baseado em evidências científicas sólidas.