锐利 | ruì lì | sharp / keen / acute / incisive / penetrating / perceptive | |
机警 | jī jǐng | perceptive / astute / sharp / sharp-witted / vigilant / alert | |
耳聪目明 | ěr cōng mù míng | sharp ears and keen eyes (idiom) / keen and alert / perceptive | |
乖觉 | guāi jué | perceptive / alert / clever / shrewd | |
锐敏 | ruì mǐn | acute / astute / perceptive | |
明察秋毫 | míng chá qiū háo | lit. seeing clearly the downy feathers of autumn (idiom, from Mencius) / fig. perceptive of even the finest detail | |
有眼无珠 | yǒu yǎn wú zhū | (idiom) blind as a bat (figuratively) / unaware of who (or what) one is dealing with / to fail to recognize what sb a bit more perceptive would |