| gruff(adjective, severe) |
| guarded(moderate, cautious, conventional, timid, traditional) |
| hanging(adjective, determined, resolute, obstinate, uncompromising) |
| hard-line(adjective, persistent, obstinate, insistent, dogged) |
| hard-shell(adjective, persistent, obstinate, insistent, dogged) |
| hard-shelled(adjective, persistent, obstinate, insistent, dogged) |
| hard hat(expression, moderate, cautious, conventional, timid) |
| hateful(adjective, intolerant) |
| hell-bent(adjective, persistent, obstinate, insistent, dogged) |
| holding to(expression, moderate, cautious, conventional, timid) |
| hyperorthodox |
| icy(adjective, severe) |
| imperial(adjective, severe) |
| impliable |
| in a rut(expression, idiom, moderate, cautious, timid) |
| indignant(adjective, intolerant) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| insubordinate(adjective, persistent, obstinate, insistent, dogged) |
| insurgent(adjective, persistent, obstinate, insistent, dogged) |
| intense(adjective, severe) |