| disarm(upset, weaken, agitate, discourage, alarm) |
| enervate(upset, weaken, agitate, discourage, alarm) |
| give a turn(expression, idiom, upset, weaken, agitate) |
| needle(upset, weaken, agitate, discourage, alarm) |
| unhinge(upset, weaken, agitate, discourage, alarm) |
| agitate(upset, weaken, alarm, frighten) |
| bowl over(expression, upset, alarm, intimidate, dismay) |
| buffaloed(weaken, agitate) |
| demoralize(upset, weaken, agitate, discourage, alarm) |
| discourage(upset, weaken, agitate, alarm, disconcert) |
| dismay(upset, alarm, intimidate, frighten) |
| enfeeble(upset, weaken, agitate, discourage, alarm) |
| intimidate(upset, alarm, dismay, frighten) |
| psych out(expression, upset, weaken, discourage, alarm) |
| ride(upset, weaken, discourage, alarm, disconcert) |
| sap(upset, weaken, agitate, discourage, alarm) |
| spook(upset, alarm, intimidate, dismay, frighten) |
| undermine(upset, weaken, agitate, discourage, alarm) |
| unnerve(verb, upset, intimidate) |
| unsettle(upset, weaken, agitate, alarm, frighten) |