| impassive(adjective, hard, careless, indifferent, cruel) |
| impenitent(adjective, hard, careless, indifferent, cruel) |
| impercipient |
| in ignorance of(expression, idiom) |
| in the dark(expression, adjective, idiom, innocent, unfamiliar) |
| incognizant |
| indifferent(adjective, hard, careless, cruel, apathetic) |
| indurated(adjective, hard, careless, indifferent, cruel) |
| inexperienced(adjective, innocent, thick, unfamiliar, unconscious) |
| inflexible(adjective, hard, careless, indifferent, cruel) |
| innocent(adjective, green, thick, unfamiliar, unconscious) |
| insensate(adjective, hard, careless, indifferent, cruel) |
| insensitive(adjective, hard, careless, indifferent, cruel) |
| insentient(adjective, hard, careless, indifferent, cruel) |
| inured(adjective, hard, careless, indifferent, cruel) |
| lost to |
| misinformed(adjective, innocent, thick, unfamiliar, unconscious) |
| moronic(adjective, innocent, thick, unfamiliar, unconscious) |
| naive(adjective, innocent, thick, unfamiliar, unconscious) |
| napping |