| objective(adjective, hard, sound, tough, rational) |
| practical(adjective, calm, hard, sound, tough) |
| unconcerned(adjective, calm, hard, careless, indifferent) |
| unromantic(adjective, hard, sound, reasonable, sensible) |
| adamant(adjective, person, mean, strong, hard) |
| chilly(adjective, person, indifferent, feelings, detached) |
| cold-hearted(adjective, hard, attitude, cold, cruel) |
| detached(adjective, indifferent, distant, unfeeling, remote) |
| earthy(adjective, hard, sound, simple, tough) |
| hands-on(applied, real-world) |
| hardheaded(adjective, strong, hard, sound, tough) |
| insensate(noun, adjective, bad, hard, careless) |
| inured(noun, adjective, hard, careless, indifferent) |
| numb(noun, adjective, insensitive) |
| passionless(adjective, detached, impassive, unresponsive, insensitive) |
| sober(adjective, calm, dull, hard, sound) |
| unbending(adjective, mean, strong, hard, tough) |
| uncaring(adjective, bad, hard, careless, cold) |
| unkind(adjective, bad, hard, tough, severe) |
| well-versed |