(intransitive) To flop around as a fish out of water. / (intransitive) To make clumsy attempts to move or regain one's balance. / (intransitive) To act clumsily or confused; to struggle or be flustered.

A European species of flatfish having dull brown colouring with reddish-brown blotches; fluke, European flounder, Platichthys flesus.

simple past tense and past participle of flounder

present participle of flounder

The act of one who flounders; a clumsy struggle.

Third-person singular simple present indicative form of flounder

plural of floundering

A surname.

plural of flounderer

One who flounders, who behaves clumsily without direction. / Someone who fishes for flounder.