1. having bad luck or fortune; experiencing unfortunate events
2. bringing or likely to bring bad luck

Examples

• He was unlucky to miss the winning shot by inches.
• She had an unlucky streak at the casino and lost all her money.
• Breaking a mirror is considered unlucky in many cultures.
• The number 13 is thought to be unlucky by some people.
• It was unlucky that it rained on their wedding day.
• The team was unlucky to lose after playing so well.
• Friday the 13th is traditionally seen as an unlucky day.