| level(noun, adjective, quiet, direct, smooth) |
| flat(adjective, calm, quiet, direct, smooth) |
| even(adjective, adverb, calm, quiet, smooth) |
| plane(noun, adjective, calm, quiet, direct) |
| smooth(adjective, calm, direct, right, flat) |
| recumbent(adjective, smooth, flat, low, level) |
| prone(adjective, smooth, low, level, down) |
| straight(adjective, calm, direct, smooth, right) |
| flush(adjective, calm, quiet, direct, smooth) |
| prostrate(adjective, smooth, low, level, down) |
| direct(adjective, smooth, right, flat, solid) |
| supine(adjective, smooth, low, level, down) |
| decumbent(adjective, smooth, low, level, down) |
| true(adjective, direct, smooth, right, flat) |
| unbroken(adjective, calm, quiet, direct, smooth) |
| uniform(adjective, calm, quiet, smooth, right) |
| uninterrupted(adjective, calm, quiet, direct, smooth) |
| regular(adjective, calm, quiet, smooth, right) |
| right(adjective, direct, smooth, flat, solid) |
| accumbent(adjective, flat, level, plane) |