Definitions

1. adjective

extremely weak or lacking in physical or mental strength

“He was the feeblest runner in the marathon and struggled to finish.”

2. superlative form of feeble

more than any other, the weakest

“She was considered the feeblest member of the team, but still contributed significantly.”

3. noun

the weakest or most ineffective person or thing

“The team’s feeblest player was benched for the remainder of the game.”