distraught

This year because of drought people were upset and anxious

its like...dis(not)+traught(thought)....so he did "not thought" of his failure in exam....so he is upset

distraught spells like past tense of distrait(not looking straight ie, not attentive).

distorted signal on tv makes us upset and anxious

DIS(T) dRAUGHT is making leaders very anxious and troubled almost to the point of madness;