Disappointing

差

Be, Differ, Difference, Different, Differential, Disappointing, Discrepancy, Dispatch, Duty, Errand, Error, Fall, Irregular, Job, Lack, Make, Messenger, Mismatched, Mistake, Not, Office, Under, Uneven, Wrong

不爭氣

Disappointing, Discouraged, Easily

不爭氣的

Disappointing

令人失望

Disappointing