Something or someone that causes disappointment or bad luck.

A term used in informal contexts to describe someone who is unwell.

ऐसा व्यक्ति जो अस्वस्थ हो

English Usage: After catching the flu, he was a bit of a sickener for a week.

Hindi Usage: फ्लू होने के बाद, वह एक हफ्ते के लिए थोड़ा अस्वस्थ था।