feeble-minded

形容词 feeble-minded:

1. retarded in intellectual development
   同义词：backward, feebleminded
2. mentally deficient
   同义词：feebleminded, half-witted, slow-witted

fee.ble-mind.ed

adj.（形容词）
Offensive Deficient in intelligence.
【无礼用语】 低能的：缺乏才智的
Exhibiting a marked lack of intelligent consideration and forethought:
愚蠢的：显出明显缺乏明智的考虑和先见的：
例句：
feeble-minded excuses; a feeble-minded plan doomed to failure.
愚蠢的借口；注定要失败的愚蠢的计划

Obsolete Irresolute and weak-willed.
【废语】 不坚决的：犹豫不决和意志薄弱的

【引伸】
fee.ble-mind.edly
adv.（副词）
fee.ble-mind.edness
n.（名词）