causing annoyance or frustration

निराशाजनक

English Usage: The exasperating delay made the passengers restless.

Hindi Usage: निराशाजनक देरी ने यात्रियों को बेचैन कर दिया।

to irritate intensely

अत्यंत चिढ़ाना

English Usage: His constant questions began to exasperate the teacher.

Hindi Usage: उसके लगातार सवालों ने शिक्षक को अत्यंत चिढ़ाना शुरू कर दिया।