inept

形容词 inept:

1. not elegant or graceful in expression
   同义词：awkward, clumsy, cumbersome, inapt, ill-chosen
2. generally incompetent and ineffectual
   同义词：feckless
3. revealing lack of perceptiveness or judgment or finesse
   同义词：tactless

1. Not competent or skillful; inept.
   无能的没能力的或不熟练的; 笨拙的
2. I've never heard anyone so inept at making speeches.
   我从未听说过有这样不会讲话的人。
3. His inept handling of a minor problem turned it into a major crisis.
   他处理不善使小事变大了。

in.ept

adj.（形容词）
Not apt or fitting; inappropriate.See Synonyms at awkward
不合适的：不恰当的或不合适的；不合宜的参见 awkward

Displaying a lack of judgment, sense, or reason; foolish:
愚蠢的：表现出缺乏判断力、理性或理智的；笨的：
例句：
an inept remark.
一个愚蠢的评价

Bungling or clumsy; incompetent:
笨拙的：毛手毛脚的；无能的：
例句：
inept handling of the account.
笨拙地处理帐目

来源：
Latin ineptus
拉丁语 ineptus
in- [not] * see in-
in- [不] *参见 in-
aptus [suitable] * see apt
aptus [合适] *参见 apt

【引伸】
inept.ly
adv.（副词）
inept.ness 或
inep.titude.