| inadequacy(noun, state, strong, weakness, condition) |
| ineffectiveness(noun, state, strong, weakness, condition) |
| incapability(noun, state, strong, weakness, condition) |
| ineffectualness(noun, state, strong, weakness, condition) |
| ineffectuality(noun, state, strong, weakness, condition) |
| inefficiency(noun, weakness, skill, failure, lack) |
| incapacity(noun, weakness, skill, failure, lack) |
| incompetence(noun, weakness, skill, failure, lack) |
| inability(noun, weakness, skill, lack, failing) |
| inadequateness(noun, defect, deficiency, inadequacy, shortage) |
| ineptitude(noun, weakness, skill, failure, lack) |
| ineptness(noun, weakness, skill, failure, shortcoming) |
| uselessness(noun, state, strong, weakness, condition) |
| impotence(noun, state, strong, weakness, condition) |
| failure(noun, defeat, blow, weakness, skill) |
| inefficaciousness(noun, failure) |
| futility(noun, inutility, uselessness, unsuccessfulness) |
| weakness(noun, informal, skill, failure, lack) |
| amateurishness(noun, innocence) |
| artlessness(noun, innocence) |