| feebleness(noun, disorder, weakness, fault, illness) |
| flimsiness(noun, disorder, weakness, fault, failing) |
| glitch(noun, weakness, crack, fault, lack) |
| impairment(noun, weakness, burden, fault, lapse) |
| inability(noun, weakness, skill, failure, lack) |
| incapability(noun, weakness, skill, failure, hopelessness) |
| incompetency(noun, weakness, failure, lack, failing) |
| inequity |
| oversight(noun, avoidance, evasion, nonpayment) |
| privation(noun, weakness, want, need, lack) |
| problem(noun, weakness, negative, failing, flaw) |
| rift(noun, weakness, crack, fault, blemish) |
| scantness(noun, weakness, condition, failure, lack) |
| snag(noun, weakness, negative, problem, disadvantage) |
| spot(noun, weakness, crack, fault, blemish) |
| underage(noun, weakness, condition, failure, loss) |
| unsoundness(noun, disorder, weakness, crack, fault) |
| vulnerable place(noun, expression, weakness, failing) |
| weak link(noun, expression, weakness, failing) |
| Achilles heel(noun, expression, weakness, fault, lack) |