a quality of being prone to negative emotions, such as anger

चिढ़चिड़ापन

English Usage: His irritability was evident after a long day of work.

Hindi Usage: काम के लंबे दिन के बाद उसके चिढ़चिड़ापन का पता चला।

an emotional response characterized by increased sensitivity to stimuli

उत्तेजनाओं के प्रति बढ़ी हुई संवेदनशीलता

English Usage: His irritability is often linked to lack of sleep.

Hindi Usage: उसका चिढ़चिड़ापन अक्सर नींद की कमी से जुड़ा होता है।