| 1 | He is prone to be impulsive, which is his flaw. | |
| 2 | The main drawback of that plan is its infeasibility. | |
| 3 | He has been trying to correct his own shortcomings. | |
| 4 | He is too stubborn, which is his shortcoming. | |
| 5 | The poor management of this company is its weakness. |