| frailty(noun, weakness, fault, failing, flaw) |
| handicap(noun, weakness, failing) |
| mistake(noun, fault, error, defect) |
| stain(noun, weakness, fault, failing, error) |
| vice(noun, weakness, fault, failing, error) |
| vulnerability(noun, weakness, fault, failing, flaw) |
| vulnerable point(noun, expression, area, weakness, failing) |
| weak link(noun, expression, area, weakness, failing) |
| weak side(noun, expression, area, weakness, failing) |
| achilles' heel |
| affection(noun, weakness, partiality, predilection) |
| appetite(noun, weakness, fault, failing, flaw) |
| blot |
| bug(noun, weakness, fault, failing, error) |
| catch(noun, weakness, fault, failing, error) |
| chink in armor(noun, expression, idiom, weakness, fault) |
| chink in one's armor(noun, area) |
| chink in the armor(noun, expression, idiom, weakness, failing) |
| damage |
| damaging weakness(noun, expression, weakness, failing) |