A literary, somewhat old-fashioned adjectival noun describing a person or action that is boldly courageous and advances without hesitation. Rare in modern conversation; more common in historical or dramatic writing.
His heroic actions moved many people.
The military commander was known for his courageous character.
Compound of 勇 (bravery) and 邁 (advance, go forward). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of heroic advance.