▪ struggle mentally; show or feel great confusion: "she floundered, not knowing quite what to say"Similarstruggle mentallybe out of one's depthbe in the darkhave difficultybe confoundedbe confusedbe dumbfoundedinformal:scratch one's headbe flummoxedbe cluelessbe foxedbe fazedbe flooredbe beaten
▪ be in serious difficulty:"many firms are floundering"Similarstruggle financiallybe in dire straitsface financial ruinbe in difficultiesface bankruptcy/insolvencyOppositeprosper
Word Originlate 16th century: perhaps a blend of founder3 and blunder, or perhaps symbolic, fl- frequently beginning words connected with swift or sudden movement.
Flounders are a group of flatfish species. They are demersal fish, found at the bottom of oceans around the world; some species will also enter estuaries. Wikipedia