/'flaʊndə(r); `flaundɚ/
v [I, Ipr, Ip]
1 move or struggle helplessly or clumsily; move with difficulty, as through mud or deep snow 笨拙地移动或挣扎; 艰难地移动（如在泥中或深雪中）
*Anna couldn't swim and was left floundering (about/around) in the deep end of the swimming-pool. 安娜不会游泳, 在游泳池的深水区里挣扎着.
2 hesitate or make mistakes when talking or when coming to a decision （说话或做决定时）犹豫或出错误
*I wasn't expecting the interviewer to ask about my private life and was left floundering for a while. 我没想到主持面试的人问我私生活的事, 就犹豫了一下.
* flounder (on) through a badly prepared speech 由于准备不充分而讲得错误百出.

The slime flounder, Microstomus achne, is a flatfish of the family Pleuronectidae. It is a demersal fish that lives on sand and mud bottoms at depths of between , though it is most commonly found between .