| exacting(adjective, hard, tough, easy, severe) |
| rear(noun, adjective, end, back, last) |
| dour(adjective, hard, tough, severe, sharp) |
| demanding(adjective, hard, easy, severe, rough) |
| unkind(adjective, person, hard, tough, severe) |
| obdurate(adjective, mean, hard, tough, severe) |
| tail(noun, adjective, end, back, last) |
| unbending(adjective, hard, tough, severe, rough) |
| implacable(adjective, appearance, mean, harsh, terrible) |
| brutal(adjective, person, mean, hard, tough) |
| forbidding(adjective, appearance, tough, severe, firm) |
| unfriendly(adjective, person, severe, dark, negative) |
| authoritarian(adjective, tough, severe, firm, harsh) |
| backside(noun, adjective, back, tail, bottom) |
| bottom(noun, adjective, back, tail, rear) |
| posterior(noun, adjective, end, back, last) |
| steadfast(adjective, resolute, persistent, rigid, strict) |
| stiff(adjective, hard, severe, rough, firm) |
| stubborn(adjective, appearance, hard, tough, rough) |
| unforgiving(adjective, mean, hard, severe, rough) |