01 a. Having a flat foot, with little or no arch of the instep; suffering from fallen arches.
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1.
Having a flat foot, with little or no arch of the instep; suffering from fallen arches.
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2.
Firm-footed; determined.[Slang, U.S.]
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3.
clumsy; amateurish; pedestrian; unimaginative; plodding; as, flatfooted prose.
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4.
Without reservation; without evasion or compromise; firm; as, a flat-footed refusal; a flatfooted denial.
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5.
With feet flat on the ground; not tiptoe.
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6.
Unprepared and unable to react quickly; as, the new product caught their competitors flat-footed.
Phrases & compounds
To catch (one) flatfooted —
to catch (a person) unprepared; to catch (a person) by surprise.
Syn.
downright, forthright, foursquare, head-on, straightforward. — Syn. -- unready.