| frowning(adjective, strong, hard, tough, severe) |
| grievous(adjective, tough, harsh, cruel, grim) |
| haughty |
| icy(adjective, cool, severe, cold, detached) |
| immaculate(adjective, quiet, simple, pure, innocent) |
| immovable(adjective, strong, hard, tough, sturdy) |
| incomplete(adjective, hard, raw, basic, rough-and-ready) |
| inhuman(adjective, mean, hard, harsh, cold) |
| intense(adjective, severe) |
| jejune |
| merciless(adjective, appearance, hard, severe, harsh) |
| minimal(adjective, simple, regular, down-to-earth, unadorned) |
| mortified(adjective, strong, hard, tough, severe) |
| naked |
| narrow-fisted(adjective, stingy) |
| natural(adjective, simple, clean, plain, pure) |
| neat(quiet, simple, pure, innocent, subdued) |
| niggardly |
| not smooth(expression, adjective, idiom, severe, bleak) |
| prim |