| brutalize(verb, dull, develop, rough, adjust) |
| calm down(verb, expression, phrasal verb, calm, dull) |
| choke off(verb, expression, calm, dull, quiet) |
| clam(verb, calm, dull, quiet, suppress) |
| close up(verb, expression, calm, dull, quiet) |
| cloud(noun, verb, dull, reduce, restrain) |
| constrain(verb, control, restrain, curb, suppress) |
| consume(verb, dull, quiet, diminish, stifle) |
| control(verb, restrain, suppress, contain, fascinate) |
| cut off(verb, expression, calm, dull, quiet) |
| cut short(verb, expression, calm, dull, quiet) |
| deadening |
| deafen |
| debilitate(verb, dull, destroy, halt, diminish) |
| decrease(verb, suppress, subdue, silence, stifle) |
| decrease the volume(verb, expression, idiom, calm, dull) |
| deprive(verb, dull, quiet, diminish, stifle) |
| disarm(verb, disable, impotence) |
| dumb(verb, calm, dull, quiet, suppress) |
| hamper(verb, disable) |