| feebleness(noun, difficulty, weakness, fault, failing) |
| gap(noun, difficulty, weakness, fault, failing) |
| instability(noun, difficulty, weakness, fault, failing) |
| lapse(noun, difficulty, weakness, fault, failing) |
| bug(noun, weakness, crack, fault, failing) |
| chink in armor(noun, expression, idiom, difficulty, weakness) |
| debility(noun, difficulty, weakness, fault, failing) |
| decrepitude(noun, difficulty, weakness, fault, failing) |
| fondness(noun, difficulty, weakness, fault, failing) |
| impotence(noun, difficulty, weakness, fault, failing) |
| inadequacy(noun, trouble, difficulty, weakness, bar) |
| inclination(noun, difficulty, weakness, fault, failing) |
| kink(noun, weakness, crack, fault, blemish) |
| liking(noun, difficulty, weakness, fault, failing) |
| penchant(noun, difficulty, weakness, fault, failing) |
| powerlessness(noun, difficulty, weakness, fault, failing) |
| predilection(noun, difficulty, weakness, fault, failing) |
| proclivity(noun, difficulty, weakness, fault, failing) |
| taste(noun, difficulty, weakness, informal, fault) |
| weak spot(noun, expression, area, difficulty, weakness) |