Floundering is a verb that means struggling or moving clumsily in water or mud. Some antonyms for the word more floundering could be swimming, gliding, or floating. These words indicate a smoother and more effortless movement in water or mud. Other antonyms for more floundering may include succeeding, thriving, or excelling. These words suggest a more positive and successful outcome. While floundering implies difficulty and struggle, these antonyms imply ease and triumph. By knowing the antonyms of floundering, one can properly differentiate between the various characteristics of movement and success.