| rock bottom(expression, cause, source, origin) |
| roughness(noun, quality, feeling, touch, character) |
| scheme(noun, quality, feeling, touch, character) |
| sense(noun, quality, feeling, touch, character) |
| simplicity(noun, purity) |
| sine qua non(expression, idiom, need, essential, requirement) |
| sinlessness(noun, purity) |
| smoothness(noun, quality, feeling, touch, character) |
| soul(noun, quality, cause, start, character) |
| source(cause, base, ground, origin) |
| spirit(noun, quality, character, significance, heart) |
| spotlessness(noun, purity) |
| stiffness(noun, quality, feeling, touch, character) |
| strategy(noun, quality, feeling, touch, character) |
| subject(noun, effect, meaning, essence, import) |
| taste(noun, quality, feeling, touch, character) |
| timber(noun, nature, quality, character, spirit) |
| tissue(noun, quality, feeling, touch, character) |
| touch(noun, quality, feeling, character, feel) |
| undeniability(need, essential, requirement, prerequisite) |