| crumble into dust(expression, idiom) |
| crush(verb, ruin, destroy, damage, consume) |
| damage(verb, disorder, ruin, destroy, spoil) |
| damp(upset, depress, extinguish, dishearten, undermine) |
| dampen(upset, depress, extinguish, dishearten, undermine) |
| daunt(upset, depress, extinguish, dishearten, undermine) |
| dazzle |
| debilitate(upset, depress, extinguish, dishearten, undermine) |
| debrief |
| decimate(close, end, separate, discharge, destroy) |
| decline(break, sink, degenerate, decay, descend) |
| degenerate(break, sink, decay, descend, fragment) |
| deject(upset, depress, extinguish, dishearten, undermine) |
| deliquesce(verb, break, collapse, split, undo) |
| dement(verb, upset, disturb, worry, wreck) |
| demob |
| demolish(verb, close, end, separate, ruin) |
| demoralise |
| deorganize |
| depress(verb, upset, disturb, weaken, discourage) |