| hushed(adjective, close, quiet, soft, low) |
| hushful(adjective, close, quiet, soft, low) |
| ill-tempered(adjective, bad mood) |
| impartial(adjective, indifferent, detached, distant, apathetic) |
| impertinent(adjective, cool, indifferent, restrained, unfriendly) |
| impervious(adjective, indifferent, detached, distant, apathetic) |
| impudent(adjective, cool, indifferent, restrained, unfriendly) |
| inaccessible(cool, cold, shy, unfriendly, distant) |
| inattentive(adjective, indifferent, detached, distant, apathetic) |
| inaudible(adjective, close, quiet, soft, low) |
| incommunicado |
| incompatible |
| incurious(adjective, quiet, cool, indifferent, restrained) |
| indistinct(still, confused, rambling, hushed, soundless) |
| indrawn |
| inexpressive |
| inhibited(quiet, gentle, still, thoughtful, reserved) |
| inhospitable(adjective, cool, cold, shy, unfriendly) |
| inobtrusive(adjective, quiet, soft, low) |
| insolent(adjective, cool, indifferent, restrained, unfriendly) |