| impair(verb, dull, quiet, decline, reduce) |
| unnerve(verb, dull, quiet, strong, diminish) |
| abate(verb, dull, quiet, decline, reduce) |
| damp(verb, upset, trouble, dull, quiet) |
| dull(verb, upset, trouble, quiet, reduce) |
| incapacitate(verb, dull, quiet, diminish, weaken) |
| reduce(verb, upset, dull, quiet, decline) |
| afflict(verb, upset, trouble, dull, reduce) |
| blunt(verb, dull, quiet, diminish, weaken) |
| consume(verb, dull, quiet, diminish, dry) |
| daunt(verb, upset, trouble, dull, reduce) |
| deprive(verb, dull, quiet, diminish, abate) |
| diminish(verb, dull, quiet, decline, reduce) |
| discourage(verb, upset, dull, reduce, disturb) |
| dishearten(verb, upset, dull, reduce, disturb) |
| dispirit(verb, upset, trouble, dull, reduce) |
| extenuate(weaken, disable, incapacitate, enervate, cripple) |
| fatigue(verb, reduce, strain, weaken, consume) |
| indispose |
| lessen(verb, dull, quiet, decline, reduce) |