Webster's 1913 Dictionary
FLAT-FOOTED
FLAT-FOOTED Flat "-foot `ed, a.
1. Having a flat foot, with little or no arch of the instep.
2. Firm-footed; determined. [Slang, U.S.]
New American Oxford Dictionary
flat-footed
flat-foot ed |ˈˌflæt ˈˌfʊdəd | ▶adjective 1 having flat feet: a flat-footed, overweight cop. 2 • informal unable to move quickly and smoothly; clumsy: getting caught in flat-footed ignorance can be uncomfortable. • informal not clever or imaginative; uninspired: he has little space for anecdote, but the text is no flat-footed catalog. PHRASES catch someone flat-footed informal take someone by surprise: the rise of regional conflicts has caught military planners flat-footed. DERIVATIVES flat-foot ed ly adverb, flat-foot ed ness noun
Oxford Dictionary
flat-footed
flat-footed |flatˈfʊtɪd | ▶adjective having flat feet: a flat-footed, overweight colonel. • informal unprepared: many local companies were caught flat-footed by international competition. • informal inelegant, awkward, or uninspired: a flat-footed prose style. DERIVATIVES flat-footedly adverb, flat-footedness noun
Sanseido Wisdom Dictionary
flat-footed
fl à t-f ó ot ed /-ɪd /形容詞 1 扁平 （へんぺい ）足をした .2 ｟くだけて ｠〈人 言動が 〉ぎこちない, ぶざまな .3 ｟くだけて ｠無遠慮な ; きっぱりとした .c à tch A flat-f ó oted 1 ｟米 やや古 ｠A 〈人 〉がさぼっているのを見つける .2 Aを不意打ちする .
The Wordsmith Dictionary