| plane(adjective, quiet, soft, gentle, flat) |
| reasonable(adjective, calm, quiet, easy, sensible) |
| regular(verb, adjective, calm, quiet, sound) |
| self-contained(adjective, cool, blank, aloof, unemotional) |
| solemn(adjective, calm, quiet, cool, reasonable) |
| stolid(adjective, calm, quiet, cool, relaxed) |
| unbroken(verb, adjective, quiet, sound, soft) |
| unexcitable(adjective, calm, quiet, cool, smooth) |
| untouched(adjective, calm, cool, restrained, steady) |
| aloof(adjective, calm, quiet, cool, moderate) |
| easy(adjective, calm, quiet, cool, soft) |
| grave(adjective, calm, quiet, cool, reasonable) |
| inactive(adjective, quiet, cool, smooth, mild) |
| insouciant(adjective, calm, cool, relaxed, indifferent) |
| methodical(calm, smooth, steady, temperate, composed) |
| motionless(adjective, calm, quiet, cool, smooth) |
| muted |
| rational(adjective, calm, quiet, reasonable, sensible) |
| reserved(adjective, calm, cool, sensible, indifferent) |
| slow(adjective, calm, quiet, cool, smooth) |