成事不足, 败事有余

成事不足, 败事有余

chéng shì bù zú bài shì yǒu yú

not good enough to accomplish anything, but more than enough to spoil things; never able to achieve, always able to ruin; never make, but always mar; unable to accomplish anything but liable to spoil everything; unable to achieve anything, but good at spoiling things; worse than useless