| disappointing |
| distorted(adjective, erroneous, blemished) |
| incompetent(poor, inadequate, insufficient, deficient, scarce) |
| inexact(bad, wrong, false, incorrect, incomplete) |
| invalid(adjective, mean, bad, wrong, false) |
| lousy(adjective, mean, weak, rough, poor) |
| mediocre |
| off(adjective, wrong, rough, poor, false) |
| on the fritz(expression, adjective, idiom) |
| partial(adjective, inadequate, deficient, incomplete, imperfect) |
| patchy(adjective, short, deficient, lacking, incomplete) |
| shabby(adjective, small, common, insignificant, unimportant) |
| shoddy |
| subnormal(adjective, broken, working) |
| unacceptable(verb, adjective, person, feelings, emotions) |
| undeveloped(adjective, bare, deficient, incomplete, inexact) |
| vile(verb, adjective, person, bad, feelings) |
| warped(imperfection, deficient, broken, incomplete, inexact) |
| worthless |
| big |