1. A response that is appropriate, fitting, and directly related to the subject matter being discussed
The professor appreciated the student's pertinent answer to the difficult question.
O professor apreciou a resposta pertinente do aluno para a pergunta difícil.
2. A reply that demonstrates understanding and addresses the core issue at hand
We need a pertinent answer, not just any comment.
Precisamos de uma resposta pertinente, não apenas qualquer comentário.