perspicacious

/ˌpɝː.spɪˈkeɪ.ʃəs/

形容词

聪颖的；敏锐的；有洞察力的
His perspicacious grandfather had bought the land as an investment, guessing that there might be gold underground.
他睿智的祖父投资买下了这块地，认为地下可能有黄金。