/ Dictionary / Index F flounder: Meaning and Definition of Find definitions for: floun•der Pronunciation: (floun'dur), [key] — v.i. to struggle with stumbling or plunging movements (usually fol. by about, along, on, through, etc.): He saw the child floundering about in the water. to struggle clumsily or helplessly: He floundered helplessly on the first day of his new job. floun•der Pronunciation: (floun'dur), [key] — pl. -der, -ders. a European, marine flatfish, Platichthys flesus, used for food. any of numerous similar or closely related non-European flatfishes. any flatfish other than soles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flounder (Thesaurus) flouncy flour Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language