flat-footed

(指动物)足底天生平坦的；(尤指马)蹄底接近地面的。

Of an animal: having feet which are naturally flat; (specifically) of a horse: having hoofs with soles close to the ground.

指人患有扁平足的,即脚底与地面完全接触,由于足弓塌陷或从未发育。

Of a person: having the physical condition of flat feet (“a condition where the soles of the feet are in full contact with the ground, either because the arches have collapsed or because they never developed”).

(尤指铁路的钢轨等物)具有平坦底部的；平底的。

Of a thing (especially (rail transport) a rail): having a flat base; flat-bottomed.

愚钝而不精细的；缺乏技巧的；笨拙的。

Blunt and unsubtle; lacking finesse; clumsy.