inefficient

英 [ɪnɪ'fɪʃ(ə)nt] 美[,ɪnɪ'fɪʃnt]

• adj. 无效率的，效率低的；无能的

1. not producing desired results; wasteful;

"an inefficient campaign against drugs"

"outdated and inefficient design and methods"

2. lacking the ability or skill to perform effectively; inadequate;

"an ineffective administration"

"inefficient workers"