| incompetent(poor, inadequate, insufficient, deficient, scarce) |
| inconsiderable(light, slight, poor, low, small) |
| inconvenience(noun, trouble, difficulty, weakness, bar) |
| inefficiency |
| infrequent |
| insignificant(adjective, slight, small, trivial, negligible) |
| insolvent |
| invisible(confused, out, hidden, lost, unchangeable) |
| involved |
| irrecoverable(confused, out, hidden, lost, missing) |
| irretrievable(confused, out, hidden, lost, missing) |
| irrevocable(confused, out, hidden, lost, missing) |
| junior(light, slight, low, importance, inferior) |
| junk(lower, poor, mediocre, deficient, incomplete) |
| kiss goodbye(expression, out, hidden, lost, missing) |
| lemon(lower, poor, mediocre, deficient, incomplete) |
| let |
| limited(lower, short, deficient, incomplete, inexact) |
| lousy(lower, poor, mediocre, insufficient, scarce) |
| low(light, slight, poor, small, incomplete) |