Definition of flat-footedly in US English:

flat-footedly

adverb

  • See flat-footed

    • ‘The question to ask is not, flat-footedly, which conception of justification gets the nature of justification right, but what we gain by thinking of justification in one way rather than another.’
    • ‘Suddenly, as we shuffled flat-footedly around the candle, the spell was broken by a woman who barged in with a bawling infant on her hip.’