demoralize

debilitate, enervate, enfeeble, neuter, weaken

prostrate, sap, soften, tire, waste

frighten, intimidate, psych (out), scare, terrify, terrorize

daunt, discourage, dishearten, dismay, dispirit

craze, derange, madden, unbalance, unhinge

discompose, disquiet, disturb, faze, perturb, unsettle, upset, weird out

browbeat, bully, cow, intimidate

depress, sadden, weigh

afflict, try

damp, dampen, deaden

distress, trouble

bother, irk, vex, worry

debilitate, enfeeble, undermine, weaken

frighten, horrify, scare

befoul, begrime, contaminate, defile, dilute, dirty, pollute, taint, thin, water down, weaken

descend

disgrace, dishonor, humble, humiliate, shame, take down

blemish, damage, deface, destroy, flaw, harm, hurt, impair, mar, ruin, spoil, stain, tarnish, wreck

depreciate, downgrade