| hard(adjective, strong, tough, severe, firm) |
| inflexible(adjective, strong, hard, tough, severe) |
| influential(adjective, strong, energetic, powerful, effective) |
| obdurate(adjective, strong, hard, tough, severe) |
| rigid(adjective, strong, hard, tough, severe) |
| stringent(adjective, tough, severe, firm, harsh) |
| astringent(adjective, strong, hard, tough, severe) |
| autarchic(adjective, full, absolute) |
| demanding(adjective, severe) |
| disciplinarian(noun, adjective, person, domineering) |
| dour(adjective, tough, severe, firm, harsh) |
| exacting(adjective, tough, severe, firm, harsh) |
| grim(adjective, strong, hard, tough, severe) |
| heavy-handed |
| lordly |
| mighty(adjective, strong, powerful, dynamic, prevailing) |
| patriarchal(adjective, alert, dominant, circumspect, ascendant) |
| strong(adjective, hard, tough, energetic, powerful) |
| unapologetic |
| uncompromising(adjective, severe) |