Unlucky (adjective)

1. Not having good luck; not fortunate.
2. Not likely to bring good luck.

Origin:

Un + lucky.

Examples:

1. He had an unlucky streak and always seemed to lose.
2. She was unlucky in love and had several failed relationships.
3. He was unlucky to have been chosen for the layoff.
4. The team had an unlucky season and didn't make it to the playoffs.
5. The unlucky gambler lost all his money at the casino.