| demanding(adjective, persistent, obstinate, insistent, dogged) |
| disobedient(adjective, persistent, obstinate, insistent, dogged) |
| exacting(adjective, persistent, obstinate, insistent, dogged) |
| fiery(strong, tough, bold, resolute, spirited) |
| fire-eating(adjective, strong, tough, polite, noble) |
| forward |
| froward(adjective, persistent, obstinate, insistent, dogged) |
| grand(adjective, polite, noble, thoughtful, brave) |
| hard |
| hard-line(adjective, persistent, obstinate, insistent, dogged) |
| hard-shell(adjective, persistent, obstinate, insistent, dogged) |
| hard-shelled(adjective, persistent, obstinate, insistent, dogged) |
| hefty |
| hell-bent(adjective, persistent, obstinate, insistent, dogged) |
| heroical |
| herolike |
| hidebound(adjective, persistent, obstinate, insistent, dogged) |
| high-spirited(strong, tough, noble, bold, resolute) |
| husky |
| impavid(strong, tough, noble, grand, bold) |