| idle(adjective, dull, quiet, careless, weary) |
| inadvertent(adjective, careless, casual, apathetic, sloppy) |
| inconsequential(adjective, reasonable, slight, lower, sensible) |
| insentient(adjective, hard, careless, cold, cruel) |
| insignificant(adjective, dull, slight, lower, value) |
| laggard(adjective, dull, careless, heavy, idle) |
| lost(adjective, careless, cold, dead, apathy) |
| lymphatic(adjective, weak, heavy, still, sluggish) |
| matter-of-fact(adjective, calm, dull, cool, cold) |
| medium(adjective, dull, reasonable, sensible, restrained) |
| minor(adjective, slight, lower, value, inferior) |
| rash(adjective, unconcerned, unkind, uncaring, reckless) |
| resigned(adjective, calm, quiet, cool, apathetic) |
| second-rate(adjective, mean, bad, simple, slight) |
| serene(adjective, feature, state, calm, cool) |
| unbiassed |
| unexcited(adjective, calm, cool, relaxed, restrained) |
| unheeding(adjective, sharp, rude, careless, short) |
| unimpressed(adjective, calm, dull, restrained, boring) |
| unremarkable(adjective, good, dull, simple, plain) |