| imperfection(noun, lack, failing, flaw, defect) |
| deficiency(noun, weakness, lack, loss, failing) |
| inadequacy(noun, weakness, failure, lack, loss) |
| shortcoming(noun, weakness, failure, lack, loss) |
| faultiness(noun, defect, deficiency, imperfection, inadequacy) |
| insufficiency(noun, weakness, failure, lack, loss) |
| defect(noun, weakness, failure, lack, failing) |
| defectiveness(noun, loss, flaw, defect, inadequacy) |
| immaturity(noun, inexperience, greenness, irresponsibility, rawness) |
| inadequateness(noun, defect, deficiency, inadequacy, shortage) |
| lack(noun, loss, defect, deficiency, inadequacy) |
| rawness(noun, ignorance, inexperience, greenness, irresponsibility) |
| shortage(noun, loss, flaw, defect, deficiency) |
| shortfall(noun, loss, imperfection, deficit, insufficiency) |
| blemish(noun, weakness, failure, lack, failing) |
| deficit(noun, loss, defect, deficiency, inadequacy) |
| need |
| discontinuity |
| fault(noun, weakness, failing, flaw, defect) |
| omission |