| inanimate(adjective, dull, flat, low, sad) |
| inconsequential(adjective, weak, slight, lower, value) |
| inconsiderable(adjective, slight, lower, value, inferior) |
| indecisive(adjective, weak, thin, delicate, shaky) |
| indifferent(adjective, dull, slight, lower, flat) |
| inessential(noun, insignificant, inconsequential, irrelevant) |
| inferior(weak, feeble, tiny) |
| infirm(weak, thin, feeble, incompetent, frail) |
| insignificant(adjective, weak, slight, lower, value) |
| intangibility(noun, unsubstantiality) |
| irksome(adjective, dull, simple, clean, plain) |
| irrelevant(adjective, slight, lower, value, inferior) |
| laid-back(adjective, dull, soft, flat, boring) |
| languid(dull, weak, low, thin, depressed) |
| lenient(adjective, quiet, weak, gentle, plain) |
| level |
| limp |
| little(adjective, weak, slight, lower, value) |
| longanimous(quiet, gentle, humble, subdued, submissive) |
| low(dull, weak, thin, depressed, incompetent) |