1. superlative form of feeble; weakest in physical strength or health
2. superlative form of feeble; most lacking in force, intensity, or effectiveness
3. superlative form of feeble; most lacking in intelligence or mental capacity

Examples

• The feeblest patient in the ward required constant care.
• Even his feeblest attempt at humor made everyone laugh.
• She gave the feeblest excuse for being late to class.
• The feeblest light from the dying flashlight barely illuminated the path.
• His feeblest effort was still better than doing nothing at all.
• The feeblest member of the team surprised everyone with determination.
• That was the feeblest argument I’ve ever heard in a debate.