case of need (noun) matter of life and death: urgent matter
Sinonime: affright, agitate, alarm, appall, astound, awe, browbeat, bulldoze, chill to the bone, chill*, cow, curdle the blood, daunt, demoralize, deter, disburb, discomfort, disconcert, discourage, dishearten, dismay, disquiet, faze, horrify, intimidate, make blood run cold, make one's blood run cold, make one's hair stand on end, make teeth chatter, panic*, perturb, petrify, repel,
scare, scare away, scare off, scare the daylights out of, scare to death,
silly, spook, startle, stiff, strike terror into, terrify, terrorize, unhinge, unnerve