1. struggled clumsily or helplessly
Usage: past tense of flounder
2. moved awkwardly through water, mud, or difficult terrain
Usage: past tense of flounder

Examples

• The student floundered when asked to explain the complex theory.
• She floundered through the deep snow toward the cabin.
• The new employee floundered during his first week on the job.
• The horse floundered in the muddy field after the storm.
• Without proper preparation, he floundered during the interview.
• The swimmer floundered in the rough waves before being rescued.