| retard(verb, dull, quiet, diminish, abate) |
| slow(verb, dull, quiet, diminish, impair) |
| smother(verb, dull, quiet, diminish, abate) |
| stifle(verb, dull, quiet, diminish, impair) |
| suppress(verb, dull, quiet, diminish, abate) |
| take the edge off(verb, expression, idiom, dull, diminish) |
| tire(verb, dull, quiet, diminish, abate) |
| tone down(verb, expression, dull, quiet, diminish) |
| treat(verb, fix, hit, drug, blunt) |
| undermine(verb, dull, diminish, weaken, dampen) |
| unnerve(verb, dull, quiet, diminish, abate) |
| water down(verb, expression, dull, diminish, weaken) |
| weaken(verb, dull, quiet, diminish, abate) |
| acclimate(verb, harden, toughen) |
| acclimatize(verb, harden, toughen) |
| accustom(verb, harden, toughen) |
| adulterate(numb, sedate, anesthetize) |
| amaze |
| anaesthetize |
| anesthetized(quiet, diminish, impair, muffle) |