1. having or showing great courage and determination; brave

Examples

• The lionhearted firefighter rushed into the burning building to save the trapped family.
• She made a lionhearted effort to defend her younger brother from the bullies.
• The lionhearted explorer ventured deep into uncharted territory.
• His lionhearted speech inspired the team to keep fighting despite being behind.
• The lionhearted soldier volunteered for the dangerous mission.
• With lionhearted determination, she stood up to the corrupt officials.