形容詞 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、 技術(shù)好，使其他運(yùn)動(dòng)員相形見(jiàn)絀。

flat-foot.ed

adj.（形容詞）
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.
堅(jiān)定的：立場(chǎng)上穩(wěn)定的
Informal Without reservation; forthright:
【非正式用語(yǔ)】 直截了當(dāng)?shù)模恢苯拥模?/br>例句：
a flat-footed refusal.
斷然的拒絕

Unable to react quickly; unprepared:
笨拙的：不能快速反應(yīng)的；無(wú)準(zhǔn)備的：
例句：
The new product caught their competitors flat-footed.
這種新產(chǎn)品使他們的對(duì)手措手不及

【引伸】
flat.-foot.edly
adv.（副詞）
flat.-foot.edness
n.（名詞）