|Origin:||Probably from FOUNDER2|
to not know what to say or do because you feel confused or upset:
I found myself floundering as I tried to answer her questions.
'I'm sorry,' she floundered helplessly.
to have a lot of problems and be likely to fail completely:
More and more firms are floundering because of the recession.
3 [always + adverb/preposition]
to be unable to move easily because you are in deep water or mud, or cannot see very well:
They were floundering chest-deep in the freezing water.
I could hear them floundering around in the dark.