flat-footed

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. with feet flat on the ground;
not tiptoe (Freq. 1)
• Similar to:
footed
2. unprepared and unable to react quickly
- the new product caught their competitors flat-footed
• Similar to:
unready
3. having broad flat feet that usually turn outward
- a slow flat-footed walk
• Similar to:
splayfooted, splayfoot
4. without reservation
- a flat-footed refusal
• Similar to:
direct
• Usage Domain:
colloquialism