1. To be unprepared or slow to react. That goal was my fault, guys. I was flat-footed on the play. The company has been somewhat flat-footed in its response to the scandal.
2. To be clumsy and awkward. Don't trust her carrying that vase—she's so flat-footed. I would change your opening argument—it's a little flat-footed as it is.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.