flat-footed

形容词 flat-footed:

1. with feet flat on the ground; not tiptoe
2. unprepared and unable to react quickly
3. having broad flat feet that usually turn outward
4. without reservation

1. His speed and skill makes other players look flat-footed.
   他速度快、 技术好，使其他运动员相形见绌。

flat-foot.ed

adj.（形容词）
Of or afflicted with flatfoot.
扁平足的：患平足的或受平足之苦折磨的

Steady on the feet.
坚定的：立场上稳定的
Informal Without reservation; forthright:
【非正式用语】 直截了当的；直接的：
例句：
a flat-footed refusal.
断然的拒绝

Unable to react quickly; unprepared:
笨拙的：不能快速反应的；无准备的：
例句：
The new product caught their competitors flat-footed.
这种新产品使他们的对手措手不及

【引伸】
flat.-foot.edly
adv.（副词）
flat.-foot.edness
n.（名词）