perspicacious
US /ˌpɝː.spɪˈkeɪ.ʃəs/
UK /ˌpɝː.spɪˈkeɪ.ʃəs/

1.
perspicaz, sagaz, penetrante
having a ready insight into and understanding of things
:
•
The perspicacious detective quickly solved the complex case.
O detetive perspicaz resolveu rapidamente o caso complexo.
•
Her perspicacious observations helped us understand the problem better.
Suas observações perspicazes nos ajudaram a entender melhor o problema.