1. People who take risks or gamble, especially those who rely on luck rather than skill or planning.
Usage: informal; chiefly British
2. People who attempt something without proper preparation or qualifications; opportunists.
Usage: informal; chiefly British

Examples

• The chancers in the group decided to enter the lottery without doing any research.
• He's one of those chancers who thinks he can succeed without any real training.
• The team was full of chancers hoping to win the competition by sheer luck.
• Don't trust those chancers—they're just looking for a quick profit.
• She warned her friends not to follow the chancers into that risky business venture.
• The chancers at the poker table were betting money they couldn't afford to lose.