| failing(verb, weak, poor, short, inadequate) |
| feeble(adjective, mean, bad, weak, poor) |
| imprecise |
| impure(adjective, inferior, impure, illegitimate, blemished) |
| incorrect(adjective, rough, poor, awful, inferior) |
| progressive tense(noun, expression, idiom) |
| rude(adjective, approximate, sudden) |
| sad(adjective, informal, inadequate, unfashionable, mean) |
| shabby(adjective, mean, bad, weak, poor) |
| subpar(adjective, weak, poor, miserable, inferior) |
| deteriorated(blemish, deterioration, imperfection) |
| erroneous |
| infirm(adjective, mean, weak, down, ill) |
| second-rate(adjective, mean, bad, weak, lower) |
| base(adjective, mean, bad, weak, lower) |
| below par(expression, adjective, idiom, bad, weak) |
| delicate(adjective, mean, weak, down, ill) |
| discolored(adjective, blemish, blemished) |
| disfigured(adjective, deficient, defective, flawed, blemished) |
| harmed |