| grim(adjective, strong, hard, tough, severe) |
| Spartan(adjective, severe) |
| absolute(adjective, set, severe, harsh, exact) |
| determined(adjective, strong, flat, harsh, certain) |
| exigent(adjective, difficult, severity, taxing) |
| finical(adjective, vigilant, fastidiousness) |
| finicky(adjective, harsh, careful, precise, rigid) |
| narrow |
| painstaking(adjective, harsh, exact, careful, regular) |
| pinpoint(adjective, exact, scrupulous, detailed) |
| pitiless(adjective, severe, harsh, cruel, determined) |
| prudish(adjective, severe, authoritarian) |
| strait-laced(adjective, severe, severity, authoritarian, prudish) |
| tight(adjective, severe, stiff, rigid, stern) |
| unsparing(adjective, strong, hard, tough, severe) |
| adamant(adjective, strong, hard, tough, flat) |
| autocratic |
| dictatorial |
| draconian(adjective, severe, harsh, informal, authoritarian) |
| extreme(adjective, severe, harsh, cruel, brutal) |