1. having courage and determination; spirited and brave

Examples

• The mettlesome young soldier volunteered for the dangerous mission.
• She showed her mettlesome nature by standing up to the bullies.
• The mettlesome horse pranced eagerly before the race.
• His mettlesome spirit helped him overcome many obstacles.
• The team’s mettlesome performance impressed the coaches.
• Despite her small size, she had a mettlesome attitude that commanded respect.