1. plural of feebleness; the quality or state of being weak in body, mind, or character
Usage: countable and uncountable uses; typically used in plural to refer to multiple instances or types of weakness
2. instances or examples of being ineffectual, unconvincing, or lacking force
Usage: often used to describe flaws in arguments, performances, or reasoning

Examples

• The patient's feeblenesses became more apparent as the illness progressed.
• Despite his feeblenesses in mathematics, he excelled in literature.
• The argument had several feeblenesses that critics quickly identified.
• Age brought with it various physical feeblenesses.
• She acknowledged the feeblenesses in her first draft and revised thoroughly.
• The team's feeblenesses on defense cost them the game.