/ˌɪnɪˈfɪʃnt ||; ˌɪnəˈfɪʃənt/adj
not working or producing results in the best way, so that time or money is wasted 低效率的:
Our heating system is very old and extremely inefficient.我们的暖气设备非常陈旧,根本不管用。an inefficient secretary不称职的秘书 [OPP] efficient 反义词为efficient➔inefficiency /-ənsi ||; -ənsɪ/ noun [U]
➔inefficientlyadv